Question

the adjacent angles of a parallelogram are in the ratio 2x:4x:5x:9x find the measure of the greatest angle

Answer 1

Answer:

Sum of all angles of a IIgm is =360=2x+4x+5x+9x

20x=360

x=360/20

x=18

2x=2 X 18 = 36 deg

4x=4 X 18 = 72 deg

5x=5 X 18 = 90 deg

9x=9 X 18 = 162 deg

THEREFORE the measure of the greatest angle is 162

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