12) the pilot of an airplane flying at an elevation of 4000 feet sights a trees that
below him. if he is 10,000 feet from the tree, determine the angle of depression to the base
of the tree.
a 40.6°
b 63.6°
c 80.6°
d 23.6°

the answer i think its a, but dont quote me on that

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )