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 x 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.

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 x 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.

anonymous · Answer

i bet you guys can walk her through.. :P

austinl · Answer

How do you find the volume of a cylinder? How do you find the volume of a rectangular prism?

i_love_my_nieces · Answer

lwh

austinl · Answer

$V_{rec}=l\times w\times h$

What is a cylinder?

i_love_my_nieces · Answer

https://www.google.com/search?q=cylinder&source=lnms&tbm=isch&sa=X&ei=S1cbU4uaNIf_0AGJoYDwDA&ved=0CAcQ_AUoAQ&biw=1280&bih=711

austinl · Answer

$V_{cyl}=\pi r^2 h$

austinl · Answer

Find the volume of each of them and see which one is larger.

i_love_my_nieces · Answer

Thank you @austinL I got the answer!! ;) 0.o

austinl · Answer

did you get the answer to part b?

i_love_my_nieces · Answer

Yepper-doodle-doo.

austinl · Answer

Good job :)

i_love_my_nieces · Answer

Thank you, can you help me with 2 more?