area of circle,sector and segment....
Asked by deepitapai | 7th 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 | 7th Mar, 2009, 07:33: PM
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