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Write the coordinates of the centre of t...

Write the coordinates of the centre of the circle passing through (0,0), (4,0) and (0,-6).

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[# XI_RD_24_065]

First, Find the lengths of the triangle OAB.

The distance between the points `(x_{1}, y_{1}) and (x_{2}, y_{2})` is

`sqrt{({x}_{1}-{x}_{2})^{2}+(y_{1}-y_{2})^{2}}`.

`Rightarrow O A=sqrt{(0-4)^{2}+(0-0)^{2}}`

`Rightarrow {OA}=sqrt{(-4)^{2}+0^{2}}`

`Rightarrow OA=4`

`Rightarrow {OB}=sqrt{(0-0)^{2}+(0-(-6))^{2}}`

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