Question

please give answers​

Answer 1

HEY MATE,

let angle A be x.

According to the hint given in the question,

$x + \frac{3x}{4} + \frac{x}{2} = 180 \\ \frac{4x + 3x + 2x}{4} = 180 \\ 9x = 180 \times 4 \\ x = \frac{180 \times 4}{9} \\ x = 20 \times 4 = 80.$

Now angle A = x = 80°, angle B = 3x/4 = (3×80)/4 = 60°, angle C = x/2 = 80/2 = 40°.

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