A boy flies a kite in the air and the kite travels 50ft abov

A boy flies a kite in the air and the kite travels 50ft above the ground. The wind pushes the kite 40o to the left from its original starting point. What is the inclination of the kite’s trail? In short, what is angle “x”?

Solution

50 is the height and 40 is the distance in horizontal direction

angle from vertical is x

then tanx = 40/50 = 4/5

x = tan^{-1} (4/5)