Types of angles

The question
acuterightobtuse

Is this angle acute, right, or obtuse?

Name this angle

How it works.

75°vs90°
75<90
75°→acute
  1. 01

    Compare it to a right angle, 90°.

  2. 02

    75 is less than 90.

  3. 03

    Smaller than a right angle is acute.