![Ex 5.1, 4 - Chapter 5 Class 7 Lines and Angles - Part 2](https://d1avenlh0i1xmr.cloudfront.net/0b67700d-d845-4bc6-be1b-a74c187c370b/slide14.jpg)
Supplementary and complementary angles
Last updated at April 16, 2024 by Teachoo
Ex 5.1, 4 Find the angle which is equal to its complement. Let two complementary angles be Angle 1 & Angle 2 Where Angle1 = Angle 2 We know that, If two angles are complementary, their sum is 90°. So, Angle 1 + Angle 2 = 90° Angle 2 + Angle 2 = 90° 2 × Angle 2 = 90° Angle 2 = 90"°" /2 Angle = 45° ∴ 45° is equal to its complement.