Find the equation of circle whose center is at (0,0)and of radius 5cm

1.	Find the equation of circle whose center is at (0,0)and of radius 5cm
Answer» ( h‚k) (0‚0) r=5(x-h)²+ (y-k)²=r²(x-0)²+(y-0)²=5²x²+y²=25x²+y²-25=0<br>(x-0)^2+(y-0)^2=5^2

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