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प्रश्न
Find the value of the angle in the given figure:
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उत्तर
In the figure,
∠A + ∠B + ∠C = 180° .....(Sum of angles of a triangle)
⇒ 5x° + 4x° + x° = 180°
⇒ 10x° = 180°
⇒ x = `(180°)/10=18°`
∴ ∠A = 5x° = 5× 18° = 90°
∠B = 4x = 4 × 18° = 72°
and ∠C = x = 18°
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