Question

the pythagorean theorem is useful for calculating the distance across a rectangular area. a right triangle has one angle measuring degrees.

Explanation:

Step1: Recall Pythagorean Theorem concept

The Pythagorean Theorem $a^{2}+b^{2}=c^{2}$ is used for right - triangles, and the diagonal of a rectangular area forms the hypotenuse of a right - triangle with the sides of the rectangle as the other two sides.

Step2: Recall right - triangle angle property

By definition, a right - triangle has one angle that measures 90 degrees.

Answer:

1. Diagonal
2. 90