Ex 4.4, 2 - Chapter 4 Class 7 Simple Equations - Part 3

Advertisement

Ex 4.4, 2 - Chapter 4 Class 7 Simple Equations - Part 4

Advertisement

  1. Chapter 4 Class 7 Simple Equations
  2. Serial order wise

Transcript

180°).Let, base angles be of = b° Given that, Vertex angle = 40° Now, we know that, Sum of all angles of a triangles = 180° So, 40 + b + b = 180 40 + 2b = 180 2b = 180 − 40 2b = 140 b = 140/2 b = 70 ∴ Base angles of given isosceles triangle is 70°

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.