The surface area of a sphere is 7.84π ft.^2 What is the radius of this sphere?(1 point)
___ft.
To find the radius of the sphere, we can use the formula for the surface area of a sphere, which is given by A = 4πr^2, where A is the surface area and r is the radius. Since we are given the surface area as 7.84π ft^2, we can set up the equation as:
7.84π = 4πr^2
Dividing both sides of the equation by 4π, we get:
r^2 = 7.84/4
Simplifying the right side, we have:
r^2 = 1.96
Taking the square root of both sides, we get:
r = √1.96
Therefore, the radius of the sphere is approximately 1.4 ft.