Question

The length of the shadow of a building is 150 meters as shown below.
What is the height of the building?

A) 86 m

B) 150 m

C) 105 m

D) 75 m

Answer 1

i am not asking for the exact answer but for someone to help me like explain step by step

Answer 2

This is ratio problem with trig

Answer 3

First you based on the given angle 45 degree!

Answer 4

ok

Answer 5

then you already have its opposite side 150m

Answer 6

Can you guess which trig function we should use?

Answer 7

sine?

Answer 8

wait no cosine

Answer 9

Close, however think about we want the building height which is adjacent of the angle!
You have your last guess, lady : ....?

Answer 10

tangent?

Answer 11

no because i dont understand:)

Answer 12

idk AC/150

Answer 13

tan45 = opp/ adj

Answer 14

Can you plug the numbers in?

Answer 15

so my answer would be B?

Answer 16

Wow, that's fast :)

Answer 17

thank you:)