Question

Definition of right angle

Answer 1

Answer:

A right angle is an angle of 90°.

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Answer 2

Right Angle

In geometry and trigonometry, a right angle is an angle of exactly 90° (degrees), corresponding to a quarter turn. If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles. The term is a calque of Latin angelus rectus; here rectus means "upright", referring to the vertical perpendicular to a horizontal base line.