Question

Two adjacent angles of parallelogram are in the ratio 4:5. Find the measure of all the angle s​

Answer 1

Answer:

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Answer 2

given ,

4:5 is the ratio of adjacent angles

opposite side are equal in parallelogram . sum of the total angles in parallelogram is 360° .

So, 4x + 5x + 4x + 5x = 360

8x + 10x = 360

18x = 360

x = 20

angle A and angle D = 4 * 20 =80

angle B and angle C = 5 * 20 = 100

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