Question

suppose that 8 turns of a wire are wrapped around a pipe with length of 60 inches and a circumference of 4 inches, so that the wire reaches from the bottom of the pipe to the top. what is the length of the wire
do you know how to calculate the length of a helix?

The radius is 2/π, so we have

x = 2/π cos θ
y = 2/π sin θ
z = 15/4π θ
0 <= θ <= 8*2π
16

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