# Ex 3.3, 2 (i) - Chapter 3 Class 8 Understanding Quadrilaterals

Last updated at Aug. 31, 2021 by Teachoo

Last updated at Aug. 31, 2021 by Teachoo

Transcript

Ex 3.3, 2 Consider the following parallelograms. Find the values of the unknowns x, y, z. (1) Given, a Parallelogram ABCD where ∠B = 100° We know that, Adjacent angles of a Parallelogram are supplementary. ∠ A + ∠B = 180° z + 100° = 180° z + 100° = 180° z = 180° − 100° z = 80° Also, In parallelogram, opposite angles are equal Therefore, x = 80° , y = 100° and z = 80°

Ex 3.3

Ex 3.3, 1

Ex 3.3, 2 (i) Important You are here

Ex 3.3, 2 (ii)

Ex 3.3, 2 (iii)

Ex 3.3, 2 (iv)

Ex 3.3, 2 (v)

Ex 3.3, 3 (i) Important

Ex 3.3, 3 (ii)

Ex 3.3, 3 (iii)

Ex 3.3, 4

Ex 3.3, 5 Important

Ex 3.3, 6

Ex 3.3, 7

Ex 3.3, 8 (i)

Ex 3.3, 8 (ii)

Ex 3.3, 9 Important

Ex 3.3, 10

Ex 3.3, 11

Ex 3.3, 12 Important

Chapter 3 Class 8 Understanding Quadrilaterals

Serial order wise

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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.