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Two circles of equal radii are drawn, without any overlap, in a semicircle of diameter 4 cm. If these are the largest possible such circles that the s

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Two circles of equal radii are drawn, without any overlap, in a semicircle of diameter 4 cm. If these are the largest possible such circles that the semicircle can accommodate, then the radius (in cm.) of each circle is :
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`OC=2-r`
`sqrt2r=2-r`
`(sqrt2+1)r=2`
`r=2/2,41=0.828cm`
option b is correct.
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