A triangles angle measures are in the ratio 3: 4: 7. Find the measures of the angles
Let x be a unit. Then we form an equation for the sum of the triangle's angles:
Then 3x=30, 4x=40, and 7x=70.
so we have 3+4+7=14 for all the ratios of the angles then we do 180/14=90/7 for each unit of the ration then we have 90/7*3,90/7*4,90/7*7 for the angles so the angles are 270/7o,360/7o,90o