Question

Quadrilateral ABCD is a parallelogram.

The ratio of angle A & angle B of this parallelogram is 5:4.

Find the measure of angle B

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Answer 1

Answer:

angle B = 80 degree

Step-by-step explanation:

total part = 5+4 = 9

Angle B = 4/9 x 180 = 80 degree

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Answer 2

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