Q2Short answer
2 In ∆POQ, ∠OPQ + ∠PQO + ∠POQ = 180° (Angle sum property) 1 1 i.e. ∠P + ∠POQ + ∠Q = 180° 2 2 i.e. ∠POQ = 180° – (∠P + ∠Q) = 180° – × 180° = 90°
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2 In ∆POQ, ∠OPQ + ∠PQO + ∠POQ = 180° (Angle sum property) 1 1 i.e. ∠P + ∠POQ + ∠Q = 180° 2 2 i.e. ∠POQ = 180° – (∠P + ∠Q) = 180° – × 180° = 90°
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