True or False. If true, give a convincing argument. If false, explain why it is false. Be sure to use mathematical language in your explanation. As an airplane flies toward you, its angle of elevation increases.

True.

Step-by-step explanation:

We assume that the plane is flying at a constant height above the ground.

The angle of elevation is the angle made between the plane, you and the point on  the ground directly below the plane. As the plane approaches you the distance between you and the point on the ground decreases and therefore the angle of elevation increases.