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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
you are here 4 115
the pythagorean theorem
Not all lengths make a right triangle
There isn’t a length that can complete Sam’s design for an 11 - 9 - ? jump and
give a perfectly vertical upright. Size 7 is too long and size 6 is too short. It
seems some lengths can make right triangles and others can’t.
91.2º
11
6
9
85.9º
11
7
9
More than a
right angle
Not by much but
only exactly 90º is
a right angle, 91.2º
doesn’t cut it!
Less than a
right angle
Whoa. So not every jump is
viable? That’s all right—let’s
just make a list of the ones that
we CAN build.
How could you create a list of jumps that can be
built from the Kwik-klik pieces?
Non-right triangles
are called OBLIQUE
triangles.
Kwik-klik doesn’t make a “six and a
bit” size piece so you can only build
jumps with whole number lengths.
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Publisher Resources

ISBN: 9780596808365Errata Page