24-03-2020
Mathematics

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grujan50 grujan50

24-03-2020

Answer:

Correct answer: SA = 108 · π ft²

Step-by-step explanation:

Given:

Diameter of the sphere d = 12 ft

d = 2 · r where r is radius

r = d / 2 = 12 / 2 = 6 ft

r = 6 ft

SA = 3 · r² · π

SA = 3 · 6² · π = 3 · 36 · π = 108 · π

SA = 108 · π ft²

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