The equation circle whose center is (0, 0) and radius is 4 is: - Vidyadip

MCQ

The equation circle whose center is $(0, 0)$ and radius is $4$ is:

A
$x^2+y^2=4$
✓
$x^2+y^2=16$
C
$x^2+y^2=2$
D
None

✓

Answer

Correct option: B.

$x^2+y^2=16$

The equation of circle is $ x^2+y^2=r^2 $
Here the radius is $4$
So the equation is
$x^2+y^2=42 $
$x^2+y^2=16 $

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