the angles of a triangle are (2×-7)degree ,(×+25)degree,(3×+12)degr – InterviewSolution

1.

the angles of a triangle are (2×-7)degree ,(×+25)degree,(3×+12)degree. Find the measure of the angle

Answer»

(2x-7)+(x+25)+(3x+12)=180

6x+30=180

6x=180-30

6x=150

x=150÷6

x=25

∴43 2angle 50 3angle 87.

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