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प्रश्न
In the following triangle, find the value of x
उत्तर
Given ∠X = 3x, ∠Y = 2x, ∠Z = 4x
By angle sum property of a triangle we have
∠X + ∠Y + ∠Z = 180°
3x + 2x + 4x = 180°
∴ 9x = 180°
x = `(180^circ)/9`
x = 20°
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