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Question

Angles of a quadrilateral are in the ratio 3:4:4:7 . Find all the angles of the quadrilateral.

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Solution

angles of a quadrilateral 3:4:4:7
sum of angles in a quadrilateral =360
let the angles be 3x,4x,4x and 7x.
then, sum 360
3x+4x+4x+7x=360
18x=360
x=20
3x=60,4x=80,7x=140
the angle of quadrilateral are 60,80,80 and 140

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