Question

If the equation of a circle is (x + 4)2 + (y - 6)2 = 25, its radius is

5
10
25

Answer 1

5

Answer 2

5

Answer 3

http://www.mathsisfun.com/algebra/circle-equations.html

Answer 4

Yep. The radius is represented by the 25, but you have to take the square root of 25 because in the formula it is r^2.

Answer 5

so the answer is 5