Question

Whats the radius of (x-2)^2+y^2=16

Answer 1

r = 4

Explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the circle and r is the radius

(x - 2)² + y² = 16 ← is in standard form

with

r² = 16 ( take square root of both sides )

r =
`√(16)` = 4