3 years ago

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

2 answers:

7 0

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

Svetradugi [14.3K]3 years ago

7 0

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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