Question

Identify the radius of the circle whose equation is (x-2)^2 + (y-8)^2 = 16​

Answer 1

radius = 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 centre and r is the radius

(x - 2)² + (y - 8)² = 16 ← is in standard form

with r =
`√(16)` = 4