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.

Answer 1

@Zarkon can you help?

Answer 2

what you need to do first is fine the volume of each container. obvisously the only one you can really find the volume of is the rectangle right now use the formula V=lwd, 2 inches deep means diameter.

Answer 3

if you need the area of a circle you use pieR^2.. I hope I helped a little bit..

Answer 4

... it did but this is 7th grade math and i don't get it.

Answer 5

(i'm not in 7th grade)

Answer 6

What grade are you in?

Answer 7

Um let me see what i come up with!

Answer 8

Okay first do: 6*9*2 and what do you get?

Answer 9

i'm in 9th my friend is in 7th.

Answer 10

OH okay! Well, multiply those and see what you get. I'll walk you thru this.

Answer 11

108

Answer 12

Right! So the volume of the rectangle is 108. now for the circle one, you do Pie(radius) "Divide the diameter in half"^squared. Figure that up and see what you get..

Answer 13

the cake pan having circular shape is of larger volume bcoz the volume of the circular cake wiil be 2*pi*7^2*2 and volume of the rectangular cake will be 2*9*6

Answer 14

thanks