When baking a cake, you have a choice of the following pans:

a round cake pan that is 2 inches deep and has a 7 inch diameter
a 6 inch × 9 inch rectangular cake pan that is 2 inches deep

a. Which of these pans has the larger volume? Justify your answer.

b. How much icing will be needed to frost each cake, excluding the bottom of the cake? Justify your answer.
(4 points)

Question

When baking a cake, you have a choice of the following pans: 

          a round cake pan that is 2 inches deep and has a 7 inch diameter 
          a 6 inch × 9 inch rectangular cake pan that is 2 inches deep

a. Which of these pans has the larger volume? Justify your answer.

b. How much icing will be needed to frost each cake, excluding the bottom of the cake?  Justify your answer.
 (4 points)

anonymous · Answer

hi again :D lol

somegirl1999 · Answer

hai again :P

anonymous · Answer

find the volume for both pans and then choose the one with the most volume, show me your working if your not sure

anonymous · Answer

that is for part a

somegirl1999 · Answer

ok so how do i find the volume dont i x's height and base and width and 1/2

anonymous · Answer

this will use a different formulae. last question I gave you the formulae for a cylinder which was $$h(\pi r ^{2})$$

anonymous · Answer

which pan do you think you can use this formulae for?

somegirl1999 · Answer

a 6 inch × 9 inch rectangular cake pan that is 2 inches deep

anonymous · Answer

no cause that cake isnt a cylinder, it is a cuboid

anonymous · Answer

so that formulae will be used for  a round cake pan that is 2 inches deep and has a 7 inch diameter

anonymous · Answer

|dw:1363822333522:dw|
as you can see it looks like a cuboid, if not them it's my drawing lol :p