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Ex 6.3, 2 - Chapter 6 Class 7 Triangle and its Properties - Part 3

Ex 6.3, 2 - Chapter 6 Class 7 Triangle and its Properties - Part 4

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Transcript

Ex 6.3, 2 (ii) Find the values of the unknowns x and y in the following diagrams:In ∆ABC, ∠B = 50° ∠PAQ = 80° ∠C = x ∠BAC = y Here, ∠BAC = ∠PAQ y = 80° Now, In ∆ABD, By angle sum property, ∠BAC + ∠C + ∠B = 180° y + x + 50° = 180° 180° + x + 50° = 180° x + 130° = 180° x = 180° − 130° x = 50° Thus, x = 50°, y = 80°

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