Find the sum of the missing angle in the triangle. The sum of the angles is equal to 180 degrees. Add the given measures. 40 + 70 + ? = 180 40 + 70 = 110 110 + ? = 180 180 - 110 = 70 So, the angle measures 70 degrees. Find the sum of the missing angle in the quadrangle. The sum of the angles is equal to 360 degrees. Add the given measures. 56 + 64 + 110 + ? = 360 56 + 64 + 110 = 230 230 + ? = 360 360 - 230 =130 So, the angle measures 130 degrees. |
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