Answer: The answer is 3.14 (also known as π)
Step-by-step explanation: The formula for the surface area of a sphere is:
A = 4πr^2
A = 4π (0.5)^2
A = 4π (0.25)
A = (4 x 0.25) π
A = 1π
A = π or A = 3.14
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