Question

Is 90° an acute angle, right angle, obtuse
angle, or straight angle?

Answer 1

90 degrees is a right angle.

Explanation:

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^ That would be a 90 degrees angle.

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Imagine this is a graph, that little square of the right would represent 90 degrees.

Angles less than 90 are acute angles, angles over 90 but under 180 degrees would be obtuse, and angles that are equal to 180 degrees are straight.

Answer 2

This would be a right angle.

Explanation:

An angle less than 90˚ would be an acute angle. An obtuse angle is where the angle is more than 90˚. A right angle is where the angle is exactly 90˚ (there is a tiny square that. represents 90˚). A straight angle is a 180˚ angle.