Question

Radius of the circle \( (x + 5)^2 + (y - 3)^2 = 36 \) is:

• A. 2
• B. 3
• C. 6
• D. 5

Hint:

The radius of a circle can be obtained by taking the square root of the constant term on the right-hand side of the equation.

Answer 1

The Correct Option is C

The equation of a circle is \( (x - h)^2 + (y - k)^2 = r^2 \), where \( (h, k) \) is the center and \( r \) is the radius. Comparing the given equation with this form, we get \( r = \sqrt{36} = 6 \).