Question

The radius of the sphere is 9 inches. which equation can be used to find the surface area of the sphere? a sphere with a radius of 9 inches s = 4 pi r squared = 4 (9) squared s = 4 pi r squared = 4 pi (9) squared s = 4 pi r squared = 4 pi (18) squared s = 4 pi r squared = 4 pi (9) squared 2 pi (9)

Answer 1

The equation that can be used to find the surface area of a sphere with a radius of 9 inches is S = 4πr². Plugging in the value of the radius, the surface area is 324π square inches, or approximately 1017.88 square inches.

Step-by-step explanation:

The equation that can be used to find the surface area of a sphere with a radius of 9 inches is:

S = 4πr²

Here, S represents the surface area and r represents the radius of the sphere. Plugging in the value of the radius, the equation becomes:

S = 4π(9)² = 4π(81) = 324π

So, the surface area of the sphere is 324π square inches, or approximately 1017.88 square inches.