wtf is this waffle

[cunning heron]

Wait lemme get some paper and I’ll solve this

I miss gcse maths omds 😭

[thin pivot]

Wait a min I recognise this question

step 1: x^2+y^2=r^2 therefore radius must be 4

area of sector is Angle/360 x pi x (radius)^2

it simplifies to 32pi/9

the tangent AB hits the circle so it forms a right angle

so we can construct a right angle triangle

now we can use trigonometry to calculate the side length and use 1/2abSinC to get the area of the complete triangle

(area of triangle)-(32pi/9)

[cunning heron]

Wth did I get a negative number

Am I gonna fail alevel maths 💀💀💀

[thin pivot]

Jesus how 😭

[cunning heron]

I wish I knew 💀💀💀

Wait Ik why 😭😭😭

Idk why I used 1/2absinc to work work area of the triangle when I could’ve used the normal equation

I over complicated it

WTH I GOT THE SAME ANSWER

[cunning heron]

This is what I got

And it’s still negative

Omds I done area of the 1/4 circle minus the triangle 💀💀💀💀

[cunning heron]

My working out is the steps except for the last part. It should be 45.37…-4pi

My only defence is that I’ve had a long day with alevel trig and it’s messed with my head

[spare flower]

I got 46 pi

Am i cooked ♨️

[cunning heron]

Nooo

Did you look at the steps

[thin pivot]

Wait I’m literally wrong myself

[cunning heron]

I labelled them 1234 so you know the order to solve it

[thin pivot]

let me go to whiteboard I messed up with my trig 💀

[cunning heron]

No it’s correct

32/9 is 4 and I got 4

[thin pivot]

oh thank god

[cunning heron]

How did you get 32/9 tho

It should’ve been 16pi for the whole area

Then divide by 4 for the sector in the triangle

@spare flower I hope this help. I broke down every step for you

[bold arrow]

I got area being 34.2

[bold arrow]

Why didn’t you use the area of sector

[bold arrow]

@cunning heron is 34.2

[thin pivot]

I multiplied it by angle/360

80/360 simplifies to 2/9 so 2/9 x 16pi

ye I got like 34.199 so 34.2

[spare flower]

ohhh now i get it

do i get given those formulaw

area of sector

[supple granite]

no

learn them

[spare flower]

yea im cooked

[thin pivot]

It’s just pi r^2

then you need to multiply by angle/360

aslong as you can remember the pi r^2 bit your good

[quiet jasper]

me too

[next mango]

i love this question

[rain bobcat]

There's a full video solution 👀

[next mango]

where's it @rain bobcat

[next mango]

i think 31.8

[thin pivot]

It’s 34.2 check their yt vid edexcel p2

[next mango]

alright

Seem to have made a slight error

[rain bobcat]

On the paper I stick QR codes to the YT solutions. This one is from Edexcel Paper 2 2023 Q18

If you don’t have the paper it’s also on the website

[next mango]

I don't have a phone 😭

I don't have the paper as well