Angle 1 = 40 Degrees Angle 2 = 140 Degrees
Work Step by Step
Supplementary Angle = 180 Ratio - 2:7 Add up the total number of parts in ratio (2 + 7 = 9) Divide the Angle total by the total number of parts in ratio to get the quantity of one part. 180/9 = 20 Degrees Multiply by the number of parts in each portion of the ratio to get the total of each part of the ratio. 20 x 2 = 40 20 x 7 = 140 Add together all parts of the ratio to check to see if it add ups to the total angle in the problem. 40 + 140 = 180.