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Grade 11,

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1. The angles of quadrilateral are in the ratio 3 :5 : 9 : 13. Find all the angles of the quadrilateral.

1. The angles of quadrilateral are in the ratio 3 :5 : 9 : 13.
Find all the angles of the quadrilateral.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
Let the angles be 3x, 5.x, 9.x and 13%. Then 3x + 5% + 9.x + 13.x = 360° [Sum of angles of a quadrilateral is 360°.) 30x = 360° => % = 12° .. Angles are 36°, 60°, 108° and 156°.

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