Question

A F-15 fighter plane is view from the ground; the angle enclosed by the length of plane is theta= 0.01744 radians at the point of observation. The Technical specifications of F-15 indicate that the length of the plane is 19.45 m. What is the height (r) of the plane from the ground?

Answer 1

$$l=h\tan{\theta}$$

$$19.45=h\tan{0.01744}$$

$$h=1115\ m$$