Question

Not sure how to do it please help
http://i37.tinypic.com/16iw6eb.jpg

Answer 1

Really dont know how to do it -.- please help

Answer 2

do I use pethagram theorem to find it?

Answer 3

No. The triangles are similar.

9. \[\frac{\text{FG}}{47}=\frac{73.8}{82} \]10.
The tree is halfway to the building, so it is 1/2 of the building height.

Answer 4

thank you !

Answer 5

You're welcome.