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OpenStudy (anonymous):
The surface area of a sphere is found using the formula SA=4πr2 , where r is the radius of the sphere. What is the surface area of a sphere, in square meters, with a radius of 1/2 m?
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OpenStudy (anonymous):
the 2 next to the 4 is an exponent
OpenStudy (anonymous):
Just plug r= 1/2 in that equation.
OpenStudy (anonymous):
i did and tht not an option in the answers
OpenStudy (anonymous):
ohhhhh i got it im sorry. thank you!
OpenStudy (anonymous):
ha ha. WHat's your answer? Pi?
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OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
well done:)
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