Question

The paper around a snow cone has a slant height of 6 inches and a diameter of 3 inches. About how many square inches of paper are needed to make a snow-cone cup?

Answer 1

The answer to the problem is simply the surface area of the paper cone.
The area of a paper snow cone is define as

A = π(r)(r + l )

where :

r = d/2 = 3/2 = 1.5 in
l = 6 in
 
so 

A = π(1.5)(1.5 + 6)

A = 35.34 sq in

so  35.34 sq in of paper are needed to make it 

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