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OpenStudy (anonymous):
What is the surface area of a sphere with a radius of 7 feet? (Use 3.14 for π.) 175.84 ft 2 615.44 ft 2 351.68 ft 2 703.36 ft 2
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OpenStudy (anonymous):
\[Area= 4\pi r ^{^{2}}\]
OpenStudy (anonymous):
substitute the value you have for radius in r and solve
OpenStudy (anonymous):
\[4\times \pi \times7^{2}\]
OpenStudy (anonymous):
is it B?
OpenStudy (anonymous):
Yes.
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OpenStudy (anonymous):
yes
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