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In a Triangle the exterior angles are (2x+30)degree,(3x-10)degree and 100 degree.how much is each Exterior angle and Interior angle.(do it step-by step) |
| Sum of exterior angles of a triangle is 360o. ie, 2x+30 + 3x-10 + 100 =360o 5x +120 = 360 5x = 360 -120 =240o x = 240 / 5 =48o So the exterior angles are 2*48+30 , 3*48-10 , 100 ie, 126 , 134 , 100. |
