the angles A,B,C,and D of agenerated AbCD are in the ratio 2:3:7:8. is ABCD a parallelogram. why?
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Let the angle be
= 2x
= 3x
= 7x
= 8x
If ABCD is a parallelogram, then the sum of its angles is = 360
= 2x + 3x + 7x + 8x = 360
= 20x = 360
= x = 360 ÷ 20
= x = 18
Angles ,
= 2×18 = 36
= 3×18 = 54
= 7×18 = 126
= 8×18 = 144
HOPE IT HELPS...........☆
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