Which statement defines a right angle?

Which statement defines a right angle?

• A. an angle that measures less than 90 degrees
• B. an angle that measures 90 degrees
• C. an angle that measures more than 180 degrees
• D. an angle that measures 180 degrees

Answer: (B)

A right angle is defined by measuring exactly 90 degrees. When two lines meet to form a corner that looks like the corner of a square, they are perpendicular and create this 90-degree angle. So the statement that an angle measures 90 degrees is the one that defines a right angle. An angle less than 90 degrees is acute, an angle greater than 180 degrees is a reflex angle, and an angle of 180 degrees is a straight angle.

A right angle is defined by measuring exactly 90 degrees. When two lines meet to form a corner that looks like the corner of a square, they are perpendicular and create this 90-degree angle. So the statement that an angle measures 90 degrees is the one that defines a right angle. An angle less than 90 degrees is acute, an angle greater than 180 degrees is a reflex angle, and an angle of 180 degrees is a straight angle.