Find the surface area of the sphere.
1 answer:
Answer:
111,6cm²
Step-by-step explanation:
S.A = 4 * 3,1 * r²
S.A = 4 * 3,1 * 3²
S.A = 4 * 3,1 * 9
S.A = 36 * 3,1
S.A = 111,6
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