Question

1. If an angle of a parallelogram is four-fifths of its
adjacent angle, find the angles of the parallelogram.
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Answer 1

Step-by-step explanation:

A° = 4/5B°

A°+B°=180

4/5A + 1A = 180

4/5A+5/5A = 180

1/5A = 180 / 9

1/5A = 20

A= 100

B= 80