What is the surface area of a sphere with radius of 3.5? a. 12.25p b. 14p c. 24.5p d. 49p

S=4πr2 - this is the equation for the surface area of a sphere. We know that the radius (r) is 3.5 so here's how  to solve this:

S = 4π r2
S = 4π (3.5)2
S = 4π 12.25
S = 49π 

The surface area of a sphere with radius of 3.5 is 49π.

It equals 1373.5 that’s the solution

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