the measure of angle a b c and d of quadrilateral ABCD are in the ratio 1 ratio 3 ratio 7 ratio 9 find the measure of each angle is ABCD is parallelogram? why.
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All angles are in ratio of 1 ratio 3 ratio 7 ratio 9.
We all know that sum of all angles of a parellelogram is 360 degree.
So,1x+3x+7x+9x=360°
20x=360°
x=360°/20
x=18°
.°.1x=18
3x=3×18=54
7x=7×18=126
9x=9×18=162
We all know that sum of all angles of a parellelogram is 360 degree.
So,1x+3x+7x+9x=360°
20x=360°
x=360°/20
x=18°
.°.1x=18
3x=3×18=54
7x=7×18=126
9x=9×18=162
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