Related Links
Isosceles Right Triangle
Definition Of Isosceles Right Triangle
A right triangle in which two sides and two angles are equal is called Isosceles Right Triangle.
More About Isosceles Right Triangle
In an isosceles right triangle, the angles are 45°, 45°, and 90°.
Isosceles right triangle satisfies the Pythagorean Theorem.
The length of the hypotenuse in an isosceles right triangle is
times the side's length.
Video Examples: How to solve the Right Isosceles triangle? 45-45-90
Example of Isosceles Right Triangle
The given figure is an isosceles right triangle as the sides AB and BC are equal in length and angle B is a right angle.
Solved Example on Isosceles Right Triangle
Ques: Which of the following is an isosceles right triangle?
Choices:
A. Figure 3
B. Figure 1
C. Figure 4
D. Figure 2
Correct Answer: D
Solution:
Step 1: An isosceles right triangle has two sides equal and measure of one of its angles is 90°.
Step 2: Here, Figure 2 is an isosceles right triangle.