find the perimeter and area of the quadrilateral ABCD in which AB=21cm,And BAc=90°,AC=20cm CD,=42cm and AD=34cm
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AC = 20 cm , AB = 21 cm and ∠CAB = 90°. Perimeter = 21+29+42+34 = 126 cm. Now area of quadrilateral ABCD is equal to Area of ΔABC + Area of ΔCAD
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