The angles of a triangle = 180°.

Then 8x + 2x + 5x = 180 : 15x = 180 : X = 12

Therefore T = 5x = 45 x 12 = 60°

Then 8x + 2x + 5x = 180 : 15x = 180 : X = 12

Therefore T = 5x = 45 x 12 = 60°

Then 8x + 2x + 5x = 180 : 15x = 180 : X = 12

Therefore T = 5x = 45 x 12 = 60°

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