O'Reilly logo

Head First 2D Geometry by Dawn Griffiths, Stray

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

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.
Lawn 1—a rectangle
36 meters
20 meters
Area of rectangle = 36 × 20
= 720 meters
2
Lawn 2—a parallelogram
248 Chapter 6
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?
45 meters
16 meters
34 meters
Area of parallelogram = 45 × 16
= 720 meters
2

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required