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Question

The angle of a triangle are (2x)o,(3x+5)o and (4x14)o.
Find the value of x and the measure of each angle of the triangle.

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Solution

We know that the sum of the angles of a triangle is 180o.
2xo+3xo+5o+4xo14o=180o9xo9o=180o
9xo=180o+9o=189o
x=189o9o=21
2xo=(2×21)o=42o,(3x+5)o=[(3×21+5)]o=68o
(4x14)o=[(4×21)14]o=70o
Hence, the angles of the triangle are 24o, 68o and 70o.

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