An observer (O) spots a bird flying at a 35° angle from a line drawn horizontal to its nest. If the distance from the observer (O) to the bird (B) is 21,000 ft., how far is the bird (B) from its nest (N)?

a. 12,045 feet
b. 14,704 feet
c. 16,980 feet
d. 17,202 feet

Question

An observer (O) spots a bird flying at a 35° angle from a line drawn horizontal to its nest. If the distance from the observer (O) to the bird (B) is 21,000 ft., how far is the bird (B) from its nest (N)? 

a. 12,045 feet
b. 14,704 feet
c. 16,980 feet
d. 17,202 feet

anonymous · Answer

attachment

hartnn · Answer

do you know trigonometry to solve this ?

yttrium · Answer

Use the trigonometric function cosine to solve this. where cosx = adj/hyp

hartnn · Answer

can you find what cos of 35 degree angle is ?

directrix · Answer

cos(35) = x / 21 000

@lowcard2  Enter "cosine of 35 degrees=" in the Google search box and post what pops up on the Google calculator for cosine of 35 degrees.