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The equation of the circle with origin a...

The equation of the circle with origin as centre and passing through the vertices of an equilateral triangle whose median is of length 3a is-

A

`x ^(2)+y^(2) =9a^(2)`

B

`x ^(2)+y^(2) =4a^(2)`

C

`x ^(2) +y ^(2) =16a^(2)`

D

`x ^(2) +y^(2) =a^(2)`

Text Solution

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The correct Answer is:
B
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