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1. |
Let ABCD be a quadrilateral with area 18, with side AB parallel to the side CD and AB = 2CD. Let AD be perpendicular to AB and CD. If a circle is drawn inside the quadrilateral ABCD touching all the sides, then its radius is? |
A. | 3 |
B. | 2 |
C. | 3/2 |
D. | 1 |
Answer» C. 3/2 | |