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CBSE - IX - Mathematics - Circles

Let ABCD be a unit square. Draw a quadrant of a circle with A as centre & B & D as end points of an arc. similarly, draw a quadrant of a circle with B as centre & A, C as end points of the arc.Inscribe a circle touching the arc AC externally, the arc BD internally & also touching the side AD. Find the radius of the circle?

Asked by 1st March 2013, 12:57 AM
Answered by Expert


Draw a line EF parallel to AB and CD and passing through the center of the circle (point O) intersecting AD and BC at point E and F respectively. 
Answered by Expert 1st March 2013, 9:45 AM

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