Find the area of the quadrilateral ABCD.

Here, AC = 22 cm,


BM = 3 cm,


DN = 3 cm, and


BM AC, DNAC


It is given in the question that,


ABCD is a quadrilateral, where


AC = 22 cm


BM = 3 cm


DN = 3 cm


BM is perpendicular to AC and DN is perpendicular to AC


∴ Area of (ABCD) = Area (ABC) + Area (ADC)


= × (3 × 22) + × (3 × 22)


= × 66 + × 66


= 33 + 33


= 66 cm


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