A side of a triangle below has been extended a form and exterior angle of 144 degrees. Find a value of x
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The sum of supplementary angles is 180º
180- 144 = 36º
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Right angle 90 º
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The sum of the angles of a triangle is 180º
180º= 36º + 90º + X
180º - 36º - 90º = X
x= 54º
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Answer
x= 54º