can someone please show me the answer for this problem ?

Question

a tree is situated on level ground from a point 135 feet from the base of the tree the measure of the angle of elevation from the ground to the top of the tree is 43 degrees which is the height of the tree to the nearest foot?

Answer 1

What don't you understand about BobPursley's answer?

http://www.jiskha.com/display.cgi?id=1364232189