help

[astral yacht]

Wanna find the area ?

[heavy quail]

need help on both

[astral yacht]

For part a I think you have to proof that they have the same length

[heavy quail]

yeah

well I need help doing that

[astral yacht]

Hold up let me get out of my bed

Ok

What are the vectors

[heavy quail]

icl I made the question up

you can just choose a suitable vector

as I forgot what the vector was in the exam

[astral yacht]

, rotate

[astral yacht]

@heavy quail this is a good question

[heavy quail]

as in hard or

[astral yacht]

That is suppose to be RP

Vector RP

[astral yacht]

I made it up

[heavy quail]

gotcha

[astral yacht]

This is the beginning

,rotate

[astral yacht]

Finding the vector RQ

Cause we gonna use cosine rule

[heavy quail]

how does RP equal that

u mean RQ

[astral yacht]

Yes

My notation is so bad

[heavy quail]

np

[astral yacht]

Second part is using Pythagorean theorem

To find the length

,rotate

[astral yacht]

Cosine rule

Than use 1/2ab sin C

Than don’t forget to times it by 2 at the end

@heavy quail

You understand it ?

[heavy quail]

yeah im reading it right now slowly tryna process this

@astral yacht idk u could do that

[astral yacht]

Know you know

Now*

Hold up

[heavy quail]

I thought with proofs u cant use the answer to get the proof

oh nevermind

[heavy quail]

yes

gotcha

oh you found it nice

I get it now thanks

[astral yacht]

Give it a go

[astral yacht]

I’m glad bro

[heavy quail]

oh crap sure

[astral yacht]

I will be doing it as well

[heavy quail]

wait part a I still dont know but part b I can do

okay sure

[astral yacht]

You’re proving that they have the same length

[heavy quail]

yeah

@astral yacht for b I got 22.737

[astral yacht]

Same

It says exact

[heavy quail]

you dont really need to include the 1/2 or 2 as they cancel

[astral yacht]

Correct

Root517

[heavy quail]

how cna I get it in exact I used so many digits

[heavy quail]

why'd u find QS

[astral yacht]

This is maths genie working out

[heavy quail]

oh I thought in a rhomus PQ=RS and QR=PS

oops

[glass copper]

beluga doing maths

No way

[astral yacht]

Is the exact form that gets me 😭

But the answer we got is correct

[astral yacht]

Yes way

Now that you know this approach, you can do well in this style question

[heavy quail]

why this guy split it into 4 triangle lols

ty beluga

[astral yacht]

You’re welcome bro

[heavy quail]

wait

[astral yacht]

😭

[heavy quail]

did maths genie make a mistake

[astral yacht]

Where?

[heavy quail]

you said multiply by 2

I dont think maths genie did that

how tf did he use QS and PR as his lengths

maths genie tweaking imma just ignore that ty anyway

[astral yacht]

Hmm I will look at that

[astral yacht]

You’re welcome bro

[heavy quail]

wait

[heavy quail]

so I was riht about that?

[astral yacht]

He did get the right answer

[heavy quail]

bro mathsgenie is DUMB

ALL SIDES OF ARHOMBUS IS EQUAL

[astral yacht]

He found the base and the height

[heavy quail]

nahh ahh

so maths genie just wanna be extra now

thanks beluga