Find the angles of parallelogram ABCD if angle a – angle b is 55 degrees.
| December 7, 2020 | education
Let the angle b = x
then the angle a = x + 55
Since this is a parallelogram, angle a + angle b = 180 = 2x + 55
2x = 125
x = 62.5 is the angle b
angle a = 62.5 + 55 = 117.5
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