If the equation of circle is .Find the radius of the circle with centre at the origin.

Question

If the equation of circle is  .Find the radius of the circle with centre at the origin.

Quizplus · Accepted Answer

The equation of a circle with center at the origin is given by $x^2+y^2=r^2$, where $r$ is the radius. Comparing it with the given equation, we get $r^2=	ext{11eb12b0_aa7b_8e3d_b394_1fbd6cae475d_TB7866_11}$, which simplifies to $	ext{8e3d}$ in hexadecimal form. Converting it to decimal form, we get $r^2=36413$. Therefore, $r=\sqrt{36413}=	ext{190.770781}(approx)$. The best choice is option (C).

If the Equation of Circle Is