The surface area of a sphere is 7.84π ft.2 What is the radius of this sphere? is it 1.40

Answer 1

To find the radius of the sphere, you can use the formula for the surface area of a sphere:

Surface Area = 4πr^2

where r is the radius of the sphere.

Given that the surface area is 7.84π ft^2, you can equate this to the above formula and solve for r:

7.84π = 4πr^2

Divide both sides of the equation by 4π:

7.84π / 4π = r^2

2 = r^2

Taking the square root of both sides, we find:

r = √2

Therefore, the radius of the sphere is approximately 1.41 ft, not 1.40 ft.