Thursday, March 29, 2007

Math Makes Pizza Better

So the other day, I made one of the dumbest decisions of my life. My wife and I are at a pizzeria, and I notice the price of a 8" pizza is 1/2 the price of a 14" pizza. I brilliantly suggest we get two 8" pizzas because we'll get more for our money. Why is this not true?

Math Review
Remember that the area of a circle is πr(squared)


The area of the 8" pizza is:
π x 4(squared)
π x 16
16π
50.24
The area of the 14" pizza is:
π x 7.5(squared)
π x 56.25
56.25π
176.625

So the 8" pizza is 50.24 square inches of food
and the 14" pizza is 176.625 square inches of food.
The 14" gives you three and a half times as much food!

Hopefully you won't make the same mistake I did.


2 comments:

Anonymous said...

While this post was an interesting breath of fresh air to all the political stuff of which you seem fond of writing, I have to point out that 14 divided by 2 is not 7.5... Not to add insult to injury or anything. Love ya!
Dana

My-DC said...

Ouch!