#gcse

200 messages · Page 1 of 1 (latest)

near lava
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first of all

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AB and BC are equal

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yk why?

brisk badger
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drawing ||the line OB may help||

near lava
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nah its bc they start from the same point

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and the fact that they're tangents yh

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bc of that OAB and OCB are 90 tangent + radius = 90

hexed kelp
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u can start by finding the length of major arc AC

brisk badger
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yh

hexed kelp
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yeah

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find the arc length

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the major arc

brisk badger
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have you found the length of AB and BC?

near lava
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thats the angles made with the radii

hexed kelp
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(360-140)/360 × pi × 100

near lava
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not 50^2

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ur tryna find arc length

hexed kelp
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oh shit

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mb

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gives u the length of that

Screenshot_20230214_205129_Discord.jpg
brisk badger
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no

hexed kelp
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i havent done circle theorems yet so i cant help u w that sorry

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no

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×100

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not ×50

brisk badger
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you need to double the 50 cuz thats radius not diameter

hexed kelp
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yes

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fair enough

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oh i think

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u can cut triangle ABC in half

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will give u 2 triangles

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one angle will be 70 coz 140/2

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another will be 90 coz radius and tangent meet at 90°

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and then u can use trig to find out AC

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then double it

brisk badger
hexed kelp
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add all ur answers up

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and job dome

hexed kelp
brisk badger
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prove it

hexed kelp
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if u put a line AB wont that cut it in half

brisk badger
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prove it

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AB?

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u mean OB

hexed kelp
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thanks😅

hexed kelp
hexed kelp
brisk badger
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...

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u cant just guess in ur tests

hexed kelp
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i cant put it into words

brisk badger
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thats an issue then isnt it

hexed kelp
near lava
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unless its wrong

hexed kelp
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yeah

brisk badger
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if somethings not justified you get no marks anyway

hexed kelp
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ive never even done circle theorems

brisk badger
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not a circle theorem

hexed kelp
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tangents..

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is that not circle theroma

brisk badger
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whether the line splits it in half or not is not a circle theorem no

hexed kelp
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oh

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well

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ima try my best

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because radii are equal

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tangents from the same point are eaual

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equal

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so ig if u cut OB ull get 2 equal triangles

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wont u

near lava
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yes

hexed kelp
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coz u cut it in the MIDDLE?

brisk badger
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how do you know its the middle

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ofc if u cut something down the middle its gonna be in half

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when you draw the line OB the triangles AOB and COB are congruent so yes it does cut them in half

hexed kelp
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thats what ive been saying for the past 30 mins

brisk badger
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you draw the line OB yes

hexed kelp
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u dont really need reasoning

brisk badger
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the trig can find the lengths

brisk badger
hexed kelp
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well

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for wjec u dont

brisk badger
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bro does wjec

hexed kelp
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i live in wales

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i dont really have a choice

brisk badger
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move

hexed kelp
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do i

near lava
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wjec

hexed kelp
near lava
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sounds russian

hexed kelp
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it aint that easy

near lava
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it is

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literally just get up

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walk out the house

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go to england

hexed kelp
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no money

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broke

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i cant get a house there

brisk badger
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get richer then

near lava
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live in bins for the time being

hexed kelp
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who cares

brisk badger
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join hustlers uni

hexed kelp
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unis care about ur grades

brisk badger
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no way

hexed kelp
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my dad wants to stay in wales ig

brisk badger
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do you own any sheep

hexed kelp
hexed kelp
brisk badger
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they dont care about any of my gcses

hexed kelp
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i just live there

brisk badger
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so do you own any sheep

hexed kelp
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no

brisk badger
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damn

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why u even there then

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just move fr

hexed kelp
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i want to

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my dad wants to stay in wales tho

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i cant do anything against that

near lava
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run away

brisk badger
hexed kelp
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the only difference is the grading system

brisk badger
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br

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its a right angled triangle

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u dont need all that

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just sohcahtoa

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its got a 90 degree angle...

hexed kelp
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tangent and radius always meet at 90

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°

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what

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send ur workings

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something is wrong

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u need to add the 70° angle

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on the triangle

brisk badger
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no cuz then the labels would be different

hexed kelp
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then cos 70=50/missing side

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50cos70

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isnt it

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@last cipher

brisk badger
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wut

hexed kelp
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is it

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am i right

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or tripping

brisk badger
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it would be tan70 = x/50

hexed kelp
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hes tryna find the hypotenuese tho

brisk badger
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no

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why would u want that

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no

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the hypotenuse is the line u drew on

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yes

hexed kelp
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i was in the toilet tho so i wasnt really focusing😭

brisk badger
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yeah pull out the excuses

hexed kelp
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i swear

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on god

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assuming ur calculations are right then yes i think

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np anytime

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its y10 stuff really

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ive done trig

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cheers tho

brisk badger
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pure guesswork fr

hexed kelp
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what are u on about

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i knew what i was doing

brisk badger
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couldnt seem to prove it 😴

hexed kelp
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it doesnt say 'prove' in the question tho did it

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its coz the base of the triangle is 2 radii

brisk badger
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doesnt say guess either does it

hexed kelp
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i didnt guess

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i just cant put it into words

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thats why im bottom set english

brisk badger
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🥶

hexed kelp
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im 2 above bottom set tbh

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doesnt matter

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i knew what i was doing

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but couldnt put it to words

hexed kelp
brisk badger
hexed kelp
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so if u cut the the triangle from the centre of the circle down the middle

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it would make 2 equal triangles

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u prove it then go on

brisk badger
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i did...

hexed kelp
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where

brisk badger
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was super hard to put into words

hexed kelp
brisk badger
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RHS

hexed kelp
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i havent even done that yet

brisk badger
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skill issue

hexed kelp
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...

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im sorry

brisk badger
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should be

hexed kelp
brisk badger
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real

hexed kelp
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bottom set english and top set maths is the best combo

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thats me

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🥶

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thats kinda cringe anyway see u

merry badge
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What is the formula u used to work out 191.98cm

merry badge
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What is that working out

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Oh ok thx

hexed kelp
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u mean θ/360