A cylindrical carton of oatmeal with radius of 3.5 in. is 9 in tall. If all surfaces except the top are made of cardboard , how much cardboard is used to make the oatmael carton. Round your answer to the nearest square inch

Answer 1

Bottom:
A = pi * r^2
A = 3.14 * 3.5^2
A = 38.465 square inches

Sides:

A = 2 * pi * r * h

Add the two areas together and round.

Answer 2

I don't understand how to do this

Answer 3

Multiply:
2 * 3.14 * 3.5 * 9 = ?

Answer 4

197.8

Answer 5

Right.