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OpenStudy (anonymous):
What is the surface area of a cone with a radius of 9 centimeters and a slant height of 6 centimeters? Use for 3.14 for pi .
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OpenStudy (anonymous):
SA = πr^2 + πrl
OpenStudy (anonymous):
?
OpenStudy (anonymous):
That's the formula for surface area. l = slant height
OpenStudy (anonymous):
SA = π(9)^2 + π(r)(6)
OpenStudy (anonymous):
How would I do it from there?
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OpenStudy (anonymous):
Multiply it out? SA = π(9)^2 + π(9)(6) SA = 81π + 54π SA = ?
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