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Example 7 - If QT ⊥ PR, ∠TQR = 40° & ∠SPR = 30°, find x & y - Examples

Example 7 - Chapter 6 Class 9 Lines and Angles - Part 2

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Example 7 In Figure, if QT ⊥ PR, ∠TQR = 40° and ∠SPR = 30°, find x and y. In ∆ TQR, ∠ TQR = 40° ∠ QTR = 90° Now, x + ∠ TQR + ∠ QTR = 180° x + 40° + 90° = 180° x + 130° = 180° x = 180° – 130° x = 50° Now, y is the exterior angle of Δ PSR y = ∠ SPR + x y = 30° + 50° y = 80°

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.