# Solution: Find the area of a quadrilateral given the sides and sum of the opposite angles

Find the area of a quadrilateral having sides AB = 10 cm, BC = 5 cm, CD = 14.14 cm and DA = 15 cm, if the sum of the opposite angles is equal to 225°.

#### Problem Statement: CE Board November 1996

Find the area of a quadrilateral having sides AB = 10 cm, BC = 5 cm, CD = 14.14 cm and DA = 15 cm, if the sum of the opposite angles is equal to 225°.

The area of a quadrilateral is 100 sq. m .

Solution:

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