the four angles of qudrilateral are in the ratio 1:3:7:9.which of the following is not the angle of this qudrilateral
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Sum of ratio = 1+3+7+9
=20
1st angle= 360÷20×1
=18°
2nd angle = 360÷ 20 ×3
=54°
3rd angle=360÷20×7
=126°
4th angle = 360÷20×9
=162°
=20
1st angle= 360÷20×1
=18°
2nd angle = 360÷ 20 ×3
=54°
3rd angle=360÷20×7
=126°
4th angle = 360÷20×9
=162°
praveen3741:
but in my book answer is 108 degree
Mark me as brainliest
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