Question

what is a straight angle? choose all that apply. angle that measures exactly 180 degrees. looks like a line. an angle that measures exactly 90 degrees. is also known as a linear pair.

Explanation:

A straight angle is defined as an angle that measures exactly 180 degrees and visually appears as a line. An angle of 90 degrees is a right - angle, not a straight angle. A linear pair is a pair of adjacent angles that form a straight line, but a straight angle is not the same as being called a linear pair.

Answer:

• An angle that measures exactly 180 degrees.
• Looks like a line.