Example 4 - Chapter 3 Class 8 Understanding Quadrilaterals

Last updated at July 18, 2026 by

Example 4 - In Fig 3.26, BEST is a parallelogram Find x, y and z.

Example 4 - Chapter 3 Class 8 Understanding Quadrilaterals - Part 2

Remove Ads

Transcript

Example 4 BEST is a parallelogram. Find the values x, y and z. Given A parallelogram BEST having ∠ B = 100° We know that Opposite angles of a parallelogram are equal. ∠S = ∠B x = 100° Also, Adjacent angles of a Parallelogram are Supplementary ∠B + ∠ BES = 180° 100° + z = 180° z = 180° − 100° z = 80° Now, For line SEO ∠SEB + ∠ OEB = 180° z + y = 180° 80° + y = 180° y = 180° − 80° y = 100° Therefore, x = 100° , y = 100° and z = 80°

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.