The equation of a circle centered at the origin is given by x² + y² = r², where r is the radius of the circle. In this case, the equation is x² + y² = 144. Therefore, r² = 144. To find r, we take the square root of both sides, which gives r = √144 = 12. So, the radius of the circle is 12. The answer is B. 12.

Question

Knowee AI · Accepted Answer

The equation of a circle centered at the origin is given by x² + y² = r², where r is the radius of the circle. In this case, the equation is x² + y² = 144. Therefore, r² = 144. To find r, we take the square root of both sides, which gives r = √144 = 12. So, the radius of the circle is 12. The answer is B. 12.

The equation of a circle centered at the origin is x2 + y2 = 144. What is the radius of the circle?A.14B.12C.72D.144SUBMITarrow_backPREVIOUS

Question

Solution

Similar Questions

Upgrade your grade with Knowee