Question

http://prntscr.com/b7qfi6

Answer 1

@Mehek14

Answer 2

@campbell_st

Answer 3

@zepdrix @freckles @adrimit
somebody help

Answer 4

so where are you stuck..?

Answer 5

I'm not sure where to start

Answer 6

to start I would construct a few perpendiculars



find the perpendicular height using a trig ratio...

then at the left end you can find a ... given you've found h...

it's easy since it's an isosceles triangle...

you know the length of one of the parallel sides

the other parallel side is 24 - a then find and add the adjacent side in the right triangle

Answer 7

find b using trig

Answer 8

it's a lot of work for 1 mark

Answer 9

b = 32cos(30) ?

Answer 10

that's correct... but it needs to be an exact value

Answer 11

is this right
https://www.wolframalpha.com/input/?i=32*sin(30)*24+%2B+32*sin(30)*32*cos(30)%2F2

Answer 12

why use wolfram alpha...

you should know

\[\sin(30) = \frac{1}{2}~~\cos(30) = \frac{\sqrt{3}}{2}\]

simple exact values... and now you can find h and b...

Answer 13

@campbell_st

I did end up finding it by the way. Thanks!