It's one angle that consists of 90 degrees
A right angle only has one angle.
2 right angles
A right angle is 90 degrees
A "right angle" is 90 degrees.
2, obtuse and reflex angles are larger than right angles A straight angle is larger.
3 right angles
3
A right angle is 90 degrees and the 4 interior angles of a square and a rectangle are all right angles.
one
The square has four right angles. The pentagon has two right angles.
0 angles
2 of them.