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 insude the quadrilateral ABCD touching all the four sides, then its radius is :

Answer»

a. 8000
B. 8300
c. 8388.8
d. 8500.5

Answer :B


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