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Ex 3.3, 9 - In the above figure both RISK and CLUE are parallelograms

Ex 3.3, 9 - Chapter 3 Class 8 Understanding Quadrilaterals - Part 2
Ex 3.3, 9 - Chapter 3 Class 8 Understanding Quadrilaterals - Part 3

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Ex 3.3, 9 In the above figure both RISK and CLUE are parallelograms. Find the value of x.Given two Parallelograms RISK and CLUE. Where ∠K = 120° and ∠L = 70° We can find x if we know ∠ E and ∠ S In parallelogram RISK Adjacent angles of a Parallelogram are supplementary. ∠K + ∠S = 180° 120° + ∠S = 180° ∠S = 180° − 120° ∠S = 60° In parallelogram CLUE Opposite angles of a Parallelogram are equal ∠E = ∠L ∠E = 70° Now, In ∆EOS, Sum of angles = 180° ∠E + ∠S + x = 180° 70° + 60° + x = 180° 130° + x = 180° x = 180° − 130° x = 50°

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.