Nadine baked 2 cakes using a circular cake pan of diameter 12 inches. She plans to make a layered cake with one cake on top of the other with frosting only in between the cakes and on top of the second cake. Layla baked 4 cakes using a circular cake pan of diameter 10 inches. She plans to make a layered cake with each cake on top of the other and frosting only in between the cakes and on top of the fourth cake. The height of frosting in both their cakes is the same.

Question

anonymous · Answer

Layla. She has to frost an area that is 50.24 square inches greater than the area Nadine has to frost.

 Nadine. She has to frost an area of 904.32 square inches, and Layla has to frost an area of 314 square inches.

 Layla. She has to frost an area of 314 square inches, and Nadine has to frost an area of 226.08 square inches.

 Nadine. The area to be frosted on each of her cakes is more than the area to be frosted on each of Layla’s cakes.

anonymous · Answer

@saifoo.khan I love you so much and I will give you a medal, and so will beellab if you help answer this :D xD

saifoo.khan · Answer

LOl @rebeccaskell94 .
Let's try this.

anonymous · Answer

whoa, wait. Don't involve me xD

saifoo.khan · Answer

Thanks btw. ^_^
@rebeccaskell94

anonymous · Answer

I'm paying you for this. You do it ;D

anonymous · Answer

You're welcome lol

saifoo.khan · Answer

@beellab , what we have to find? D:

anonymous · Answer

I think her post that she put in the reply are the options for answers.

anonymous · Answer

they are

anonymous · Answer

sorry didn't even realize! we have to find who requires more frosting

saifoo.khan · Answer

Lol. that's what i was looking for.

anonymous · Answer

sooo....

saifoo.khan · Answer

And @beellab , the height is not given as well!

saifoo.khan · Answer

It says they are same, but how can we find the Surface area?

anonymous · Answer

not sure

anonymous · Answer

the height isn't given. i put all that it says

saifoo.khan · Answer

Let me re-read.

@GOODMAN , what do you think?

saifoo.khan · Answer

Okay. so here it comes.

saifoo.khan · Answer

Nadine:

makes 2 cakes.

2* pi* r^2 
2* pi * 6^2
2* pi * 36
72 pi units^2

------------------------------------------------
Layla:

4 * pi * r^2
4* pi * 5^2
4 * pi * 25
100 pi units ^2

anonymous · Answer

are those the heights?

saifoo.khan · Answer

I think i messed up. lol.

anonymous · Answer

is that what you were trying to get tho?

saifoo.khan · Answer

Actually we are looking for this:
|dw:1343407716985:dw|