Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Polygons
Types of Polygons
Interior Exterior of Polygons
Sides, vertices and diagonals
Question 1 (a) Important Deleted for CBSE Board 2024 Exams
Convex and Concave Polygons
Ex 3.1, 1
Regular and Irregular Polygons
Ex 3.1, 2
Angle sum property of polygons
Question 2 Important Deleted for CBSE Board 2024 Exams
Question 3 Deleted for CBSE Board 2024 Exams
Question 4 (a) Deleted for CBSE Board 2024 Exams You are here
Question 5 (a) Deleted for CBSE Board 2024 Exams
Last updated at May 29, 2023 by Teachoo
Ex 3.1, 6 Find the angle measure x in the following figures. (a) We know that Sum of all the angles of a quadrilateral = 360 ∠A + ∠B + ∠C + ∠D = 360° Given ∠A = 50°, ∠C = 120° , ∠ D = 130° & ∠B = x Putting values 50° + x + 120° + 130° = 360° x + 300° = 360° x = 360° − 300° x = 60°