What is the surface area of a sphere with radius 4?A.32 units2B.16 units2C.12 units3D.64 units2
Question
What is the surface area of a sphere with radius 4?
A. 32 units²
B. 16 units²
C. 12 units³
D. 64 units²
Solution
The surface area of a sphere is given by the formula 4πr², where r is the radius of the sphere.
Step 1: Identify the radius. In this case, the radius (r) is 4 units.
Step 2: Substitute the radius into the formula. So, the surface area = 4π(4)².
Step 3: Calculate the surface area. 4π(4)² = 4π(16) = 64π units².
So, none of the options A, B, C, or D is correct. The correct answer is 64π units².
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