Mary is wrapping a can of paint as a gag gift for a friend.
If the can is 11 inches high and has a diameter of 7 inches,
how many square inches of wrapping paper will she use in
completely covering the can?
(let pi = 3.14)
As a project in tech class, the students are
making aluminum flower pots shaped like cylinders. There is a
bottom on each pot, but no top. If the pots are 9" in height and
have a diameter of 12", how many square inches of aluminum are
needed for each pot?
(let pi = 3.14)
If a can having a diameter of 4 units is doubled, how does the
surface area of the new can compare to the surface area of the
original can? The height of the original can is 8 units and is
not changed in creating the new can.
(let pi = 3.14)
A cylindrical tube needs to be painted on the
inside as well as on the outside. It is open on both ends.
If the diameter of the tube is 18 cm, and it is 110 cm in length,
what is the total surface area of this tube which will be painted?
(let pi = 3.14)
