Question

find the equation of the circle whose centre is at origin in radius 3cm


if

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Answer 1

we know that,

equation for a circle at origin is,

${x}^{2} + {y}^{2} = {r}^{2}$

since

it is given that

(radius) r=3

Therefore,

equation of circle will be

${x}^{2} + {y}^{2} = 9$

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Answer 2

Step-by-step explanation:

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