A-boy-lying-flat-on-level-ground-sees-a-bird-on-a-tree-and-the-angle-of-Elevation-from-the-boy-to-the-birth-is-42-if-the-boy-is-6m-from-the-tree-find-the-hieght-of-the-tree-if-the-bird-is-at-the-top

Question Number 42698 by Rio Michael last updated on 31/Aug/18

A b o y l y i n g f l a t o n l e v e l g r o u n d s e e s a b i r d o n a t r e e a n d t h e

a n g l e o f E l e v a t i o n f r o m t h e b o y t o t h e b i r t h i s 42 °, i f t h e b o y

i s 6 m f r o m t h e t r e e . f i n d t h e h i e g h t o f t h e t r e e i f t h e b i r d

i s a t t h e t o p o f t h e t r e e

Answered by math1967 last updated on 31/Aug/18

\frac{H e i g h t o f t r e e}{6} = t a n 42 °

H e i g h t o f t r e e = 6 \times . 9 = 5.4 m (A p p r o x)

Commented by Rio Michael last updated on 01/Sep/18

t h a n k s s i r