Definition Of Right Angle

Right angle is an angle that has a measure of 90°

Examples of Right Angle

The figure below shows a right angle.

        

Video Examples: Solve Right Triangles

Solved Example on Right Angle

Ques: One of the angles in a triangle is 90° What type of a triangle is it?

Choices:

A. equilateral triangle
B. obtuse triangle
C. right triangle
D. acute triangle
Correct Answer: C

Solution:

Step 1: A triangle in which one of the angles is 90° is called a right triangle. 
                         

 

Related Worksheet

• Classifying-Angles-Gr-4