The equation of a circle is x^2+y^2=42.25 Find the radius of the circle.

Question

asked May 4, 2023 105k views

1 Answer

Constantina · Answer 1 · 2023-05-09T04:04:34+0000

Answer:

radius = 6.5

Explanation:

the equation of a circle centred at the origin is

x² + y² = r² ( r is the radius )

x² + y² = 42.25 ← is the equation of a circle centred at the origin

with r² = 42.25 ( take square root of both sides )

r =
√(42.25) = 6.5