Question

A plane flying with a constant speed of 24 km/min passes over a ground radar station at an altitude of 5km and climbs at an angle of 35 degrees. At what rate, in km/min, is the distance from the plane to the radar station increasing 4 minutes later?


You should draw out a diagram, in this case a trapezoid, to help think out your calculus. Let us know if and specifically where you get stuck.

I know side a=5 but how do i get side b and c with angle 35 degree? Need help on that part.