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Question: Two circles of equal radii r cuts orthogonally. If their centres are (2, 3) & (5, 6) then r =...

Two circles of equal radii r cuts orthogonally. If their centres are (2, 3) & (5, 6) then r =

A

1

B

2

C

3

D

4

Answer

3

Explanation

Solution

Apply r12+r22=d2r_{1}^{2} + r_{2}^{2} = d^{2}