If in the following figure (not to scale), ∠DAB + ∠CBA = 90°, B – McqOptions

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1.	If in the following figure (not to scale), ∠DAB + ∠CBA = 90°, BC = AD, AB = 20 cm, CD = 10cm then the area of the quadrilateral ABCD is:
A.	150 cm2
B.	120 cm2
C.	100 cm2
D.	75 cm2
Answer» E.

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