The formula for the surface area of a sphere is A = 4πr^2, where A is the surface area and r is the radius of the sphere.
Given that the surface area is 7.84π ft^2, we can set up the equation as:
7.84π = 4πr^2
Divide both sides by 4π:
r^2 = 7.84/4 = 1.96
Take the square root of both sides to find the radius:
r = √1.96 = 1.4 ft
Therefore, the radius of the sphere is 1.4 ft.
The surface area of a sphere is 7.84π ft.^2 What is the radius of this sphere?(1 point)
1 answer