Question

m∠abc = 90°
what type of angle is it?
obtuse
straight
right
acute

Explanation:

Step1: Recall angle - type definitions

An acute angle has measure between 0° and 90°. An obtuse angle has measure between 90° and 180°. A straight angle has measure 180°. A right angle has measure 90°.

Step2: Identify the given angle measure

The measure of ∠ABC is 90°.

Step3: Match with the correct type

Since the measure is 90°, it is a right - angle.

Answer:

C. right