Find the equation of a circle with centre at origin and radius 4. - Vidyadip

Question

Find the equation of a circle with centre at origin and radius 4.

✓

Answer

The equation of a circle with centre at origin and radius ‘r’ is given by

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

Here, r = 4

$\therefore$ The required equation of the circle is $\mathrm{x}^2+\mathrm{y}^2=4^2$ i.e., $\mathrm{x}^2+\mathrm{y}^2=16$.

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