xojenna1
xojenna1 xojenna1
  • 01-06-2017
  • Mathematics
contestada

I'm not sure how to solve this problem. I get none of the answers

Im not sure how to solve this problem I get none of the answers class=

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anonymous79
anonymous79 anonymous79
  • 01-06-2017
Area of base = 9pi
curve surface area = 3*pi*15=45pi
total area 54pi
i guess the n here represents pi the answer would just be a since its the most relevant
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padawan
padawan padawan
  • 01-06-2017
surface are of a cone = (pi)r(r + l)
r=3, l=15 ... n is not needed
what's n anyway?
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