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ABCD is a square, the length of whose si...

ABCD is a square, the length of whose side is a. Taking AB and AD as the coordinate axes, the equation of the circel passing through the ceteices of the square is

A

`x ^(2) + y^(2)+ ax + ay =0`

B

` x ^(2) + y^(2) - ax - ay =0`

C

`x ^(2) + y^(2) + 1ax + 2 ay =0`

D

`x^(2) + y ^(2) -2ax -2ay =0`

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The correct Answer is:
B
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TARGET PUBLICATION-CIRCLE AND CONICS -COMPETITIVE THINKING
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