Question

Attached question, answerer(s) will get medals!

Answer 1

how do i find the slant height?

Answer 2

area of the base is:
\[\pi r^{2} = \pi (5)^{2} = 25\pi\]
The slant height is:
\[l^{2} = 12^{2} + 5^{2} = 144+25 = 169 \Rightarrow l = 13\]
So now we have that lateral surface area is:
\[\pi rl = \pi (5)(13) = 65\pi\]
Adding the lateral and base area gives:
\[25\pi+65\pi = 90\pi\]

Answer 3

maybe i should have read your question lol >.< to find the slant height you would use the pythagorean theorem.

Answer 4

Ah okay, thanks. Don't worry about it, my final is in two days and i can use all the info i can get.