Find the area of quadrilateral ABCD in which AB=9cm, BC=40cm, CD =28cm, DA=15cm and angleABC=90°

Find the area of quadrilateral ABCD in which AB=9cm, BC=40cm, CD =28cm

1.	Find the area of quadrilateral ABCD in which AB=9cm, BC=40cm, CD =28cm, DA=15cm and angleABC=90°
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