An airplane over the Pacific Ocean sights an atoll at an 13° angle of depression. If the plane is 752 m above the water, how many kilometers is it from a point 752 m directly above the atoll?
A.3.26 km
B.173.61 km
C.1624.12 km
D.3257.27 km

Question

An airplane over the Pacific Ocean sights an atoll at an 13° angle of depression. If the plane is 752 m above the water, how many kilometers is it from a point 752 m directly above the atoll?
A.3.26 km
B.173.61 km
C.1624.12 km
D.3257.27 km

anonymous · Answer

$$\tan(77) = x/752$$
$$752 * \tan(77) = x$$