Find the area of the shaded area (if you do not know how to do it please do not answer)

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?

What is the answer to question 11? will give extra points! include a explanation (reasonable) for you : )

Which equation below is equivalent to sin c=h/a ? a)h= sinc/a b)a=hsinc c)a=sinc/h d)h=asinc