Question

The equation of a circle is ​ (x+14)2+(y+8)2=121 ​ . What is the circle's radius? Enter your answer in the box.

Answer 1

Answer: The length of the circle's radius is 11.

Explanation:

Here's why:

(x + 14)² + (y + 8)² = 121

Since we know that the radius part of this equation is 121, we must take the square root of 121 because the problem is in squared form.

Hence, the square root of 121 equals 11, and the problem is solved.

Answer 2

The radius will be 11.

That is because the equation of the circle is written as (x - h)² + (y - k)² = r²

So in the equation given above the r is already squared so we will take the square root of 121 and find the radius.

√121 = 11

Hope this helps :)