# Math cake Ideas Answer before 11 pm on 3-10-2010

Math cake! Ideas Answer before 11 pm on 3-10-2010..

Can u help me? I need a great idea for a math cake. Please help me, i have been racking my brains! If u answer, write in detail please...

Mensanator

Does it have to be a cake?

If you baked a cherry pie in a square tin you could label it "pie are square".

Mensanator

Make a layer cake (layers progresively smaller like a wedding cake) with a dowel running through the center. Bring two empty plates each with a similar dowel and announce nobody gets a piece until The Towers of Hanoi is solved.

Mentor

Can u help me? I need a great idea for a math cake. Please help me, i have been racking my brains! If u answer, write in detail please...

Sounds like school work. What is the context of your question? What are your ideas so far?

Mensanator

Then again, there's Fermat's Little Torte.

Remove one corner column (1x1x5) and note the remaining cupcakes can be divided by 3 (24 1x1x5 columns).

Reassemble into a 4x4x4 cube.

Remove another corner column and note they can still be divided by 3 (15 1x1x4 columns).

Reassemble as a 2x2x2 cube, remove a corner column and they are still divisible by 3 (3 1x1x2 columns).

When someone says "Hey, what about the 3x3x3 cube?", you sheepishly admit you can't do that because the 8 remaining 1x1x3 columns can't be divided by 3. And then amaze them by dividing the cube into three equal layers!

If everyone hasn't overrun the table to grab a cupcake by now, demonstrate it works in two dimensions also.

Werg22

Sounds like school work. What is the context of your question? What are your ideas so far?

hahaha

current ideas:
sigma
pie symbol (too much used)
can spell stuff out in iceing or bubble gum

Homework Helper

How about a proof without words?

Barile has a nice one for pentagonal numbers at MathWorld.

There are many good ones for the Pythagorean Theorem; here is one of the oldest known:

(expanation here).

More examples: