In a triangle PQR, ∠Q = 130°.
What is the nature of ∠Q?

Straight angle

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Right angle

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Acute angle

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Obtuse angle

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Solution

The correct option is D Obtuse angle
Given:
∠P = 20° and ∠R = 30° in a traingle PQR.

We know:
∠P + ∠Q + ∠R = 180°

∴∠Q = 130°, which represents a obtuse angle.

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