A+B+C=180
B=2A
C=A+20 substituting the values for B and C in the first equation we have
A+2A+A+20=180
4A+20=180 or 4A=160 gives A=40
B=2A=80
C=A+20=60
Aryan Y.
asked • 02/04/16A triangle contains three angles: A,B and C. Angle B is twice angle A, and angle C is 20* more than angle A. Find the measures of the three angles.
A triangle contains three angles: A,B and C. Angle B is twice angle A, and angle C is 20* more than angle A. Find the measures of the three angles.
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