Equation of circle whose centre is origin and radius is 3 is:

x² + y² = 9

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(x – h)² + (y – k)² = 9

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x² + y² = 3

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(x – h)² + (y – k)² = 3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

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Solution

The correct option is A
x² + y² = 9

Equation of circle is:

(x - 0)² + (y – 0)² = (3)²

or x² + y² = 9

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Similar questions

x = 1

x = - 1

Find the equation of the circle, whose centre is (2, - 3) and radius is 5.

(3, \frac{π}{4})

5

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