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CBSE Class 10 Answered

area of circle,sector and segment....
Asked by deepitapai | 07 Mar, 2009, 05:54: PM
Expert Answer

Four circles can't touch each other, but each circle can touch two others.

When  two circles of radius a touch each other, the line joining their centers is of length 2a.

So, we will have a square of side 2a where the vertices of the square are actually the centres of these circles.

So,the required area

= Area of the square - 4(area of the  sector of one corcle of radius a and central angle 90)

=

Answered by | 07 Mar, 2009, 07:33: PM
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