an angle of a triangle is twice the sum of the other two angle.Find the angle
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A+B=C....(1)
A+B+C=180
A+B=180-C....(2)
EQUATION (1) AND (2) ARE SAME
C=180-C
2C=180
C=90
A+B+C=180
A+B=180-C....(2)
EQUATION (1) AND (2) ARE SAME
C=180-C
2C=180
C=90
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