Head First 2D Geometry > The Pythagorean Theorem: All the Right Angles

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Head First 2D Geometry

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Table of Contents

Dedication

Advance Praise for Head First 2D Geometry

Praise for other Head First books

The Authors

How to Use this Book: Intro

Ch. 1. Finding Missing Angles: Reading Between the Lines

Ch. 3. The Pythagorean Theorem: All the Right Angles

Giant construction-kit skate ramps

Standard-sized-quick-assembly-what?!?

The ramps must have perpendicular uprights

You can use accurate construction to test ramp designs on paper

Not all lengths make a right triangle

You can explore a geometry problem in different ways

In geometry, the rules are the rules

Any good jump has some similar scaled cousins

The lengths of the sides are linked by a pattern

The square of the longest side is equal to the squares of the other two sides added together

The Pythagorean Theorem: a2 + b2 = c2

Using Kwik-klik skate ramps is definitely the right angle!

A longer rope swings further and lower

So, how far can you swing on a six-meter rope?

Your rope swing is perfect

Your Geometry Toolbox

Ch. 4. Triangle Properties: Between a Rock Show and a Triangular Place

Ch. 5. Circles: Going Round and Round

Ch. 6. Quadrilaterals: It's Hip to be Square

Ch. 7. Regular Polygons: It's All Shaping Up

Index

3 the pythagorean theorem All the right angles You just straighten one leg, then straighten the other leg, clap your hands, and you're dancing the hypotenuse! It's all in the hips, really.

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Chapter 3. The Pythagorean Theorem: All the Right Angles - Pg. 103