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प्रश्न
In Δ ABC, if ∠ A = 65° ; ∠ B = 40° then find the measure of ∠ C.
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उत्तर
In Δ ABC, ∠A = 65°, ∠B = 40°
∠ A + ∠ B + ∠ C = 180°
∴ 650 + 400 + ∠C = 180°
∴ ∠ C = 180°-1050
∴ ∠C = 75°
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