Four equal circles each of radius a units touch one another. The area enclosed between them ( = 22/7 ), in square units, is

Four equal circles each of radius a units touch one another. The are

1.	Four equal circles each of radius a units touch one another. The area enclosed between them ( = 22/7 ), in square units, is
A.	3a
B.
C.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>6a </center></td></tr><tr><td style="text-align: center;">7</td></tr></table>
D.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>41a </center></td></tr><tr><td style="text-align: center;">7</td></tr></table>
E.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>a </center></td></tr><tr><td style="text-align: center;">7</td></tr></table>
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>6a </center></td></tr><tr><td style="text-align: center;">7</td></tr></table>

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Four equal circles each of radius a units touch one another. The area enclosed between them ( = 22/7 ), in square units, is

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