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Head First 2D Geometry
book

Head First 2D Geometry

by Stray (Lindsey Fallow), Dawn Griffiths
November 2009
Beginner content levelBeginner
368 pages
8h 55m
English
O'Reilly Media, Inc.
Content preview from Head First 2D Geometry
custom sized pies
212 Chapter 5
Pepperoni crust pizza—but at what price?
Mario’s idea is to offer a pepperoni crust on any pizza. He wants to offer
the best possible value to his customers so he’ll only add the minimum
price needed to cover the cost of the extra pepperoni. Sounds simple,
right? But Mario has a problem with the sequence of events in the pizza
process:
Mario will
add 5 cents
per piece of
pepperoni.
The catch is…Mario’s pizzas are custom sized!
If Mario only offered a couple of pizza sizes you could just make
the crust for each size once and then always add the cost of that
amount. But Mario likes to give his customers as much choice as
possible.
I’d like a 14"
Hawaiian, with
pepperoni crust.
That’s 12
dollars and
60 cents.
I let the customer choose the size
they want—any size—8-inch, 23-inch,
whatever. But to give them the right
price I need to know now many pieces of
pepperoni I’ll use on the edge—before I
make the pizza! Is this possible?
The customer rings up with their order.
1
Mario says how much it will be.
2
Mario makes the pizza.
3
you are here 4 213
circles
Scale: 1cm = 2 inches
Hint: A piece of string can be useful
to measure the outside edge of a
circle
Geometry Detective
Mario needs a way to work out how many pieces of pepperoni it will
take to edge a pizza, ba ...
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Publisher Resources

ISBN: 9780596808365Errata Page