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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
248 Chapter 6
it’s not just area
Let’s compare the two lawns
They should be the same, but let’s see if we can track down what went
wrong by comparing the areas of the two lawns. The angry customer
has a rectangular lawn, and his neighbor has a lawn in the shape of a
parallelogram.
So the areas of both lawns
are definitely the same.
But you don’t just mow the
lawns, you edge them, too. I
wonder if that has anything
to do with it?
Lawn 1—a rectangle
Area of rectangle = 36 × 20
= 720 meters
2
36 meters
20 meters
Lawn 2—a parallelogram
45 meters
16 meters
34 meters
Area of parallelogram = 45 × 16
= 720 meters
2
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Publisher Resources

ISBN: 9780596808365Errata Page