Dr. Math Presents More Geometry Learning Geometry is Easy! Just Ask Dr. Math

by Unknown

• ISBN13: 9780471225539
• ISBN10: 0471225533
• Edition: 1st
• Format: Paperback
• Copyright: 2004-12-27
• Publisher: Jossey-Bass

Summary

You, too, can understand geometry-- just ask Dr. Math ? ! Are things starting to get tougher in geometry class? Don't panic. Dr. Math-the popular online math resource-is here to help you figure out even the trickiest of your geometry problems. Students just like you have been turning to Dr. Math for years asking questions about math problems, and the math doctors at The Math Forum have helped them find the answers with lots of clear explanations and helpful hints. Now, with Dr. Math Presents More Geometry, you'll learn just what it takes to succeed in this subject. You'll find the answers to dozens of real questions from students in a typical geometry class. You'll also find plenty of hints and shortcuts for using coordinate geometry, finding angle relationships, and working with circles. Pretty soon, everything from the Pythagorean theorem to logic and proofs will make more sense. Plus, you'll get plenty of tips for working with all kinds of real-life problems. You won't find a better explanation of high school geometry anywhere!

Author Biography

THE MATH FORUM @ Drexel (www.mathforum.org) is an award-winning Web site and one of the most popular online math resources for students and teachers. The Math Forum @ Drexel offers answers to all kinds of math questions, prepared by a team of math experts. It also keeps archives of previous questions and answers, hosts online communities, and posts several "problems of the week."

Table of Contents

Acknowledgments	ix
Introduction	1	(2)
PART 1 Points, Lines, Planes, Angles, and Their Relationships	3	(24)
Angle Relationships and Perpendicular and Parallel Lines	5	(7)
Proving Lines Parallel	12	(2)
The Parallel Postulate	14	(6)
Coordinates and Distance	20	(7)
Resources on the Web	25	(2)
PART 2 Logic and Proof	27	(28)
Introduction to Logic	28	(6)
Direct Proof	34	(15)
Indirect Proof	49	(6)
Resources on the Web	54	(1)
PART 3 Triangles: Properties, Congruence, and Similarity	55	(34)
The Triangle Inequality Property	56	(2)
Centers of Triangles	58	(4)
Isosceles and Equilateral Triangles	62	(4)
Congruence in Triangles: SSS, SAS, and ASA	66	(10)
Similarity in Triangles	76	(4)
Congruence Proofs	80	(9)
Resources on the Web	85	(4)
PART 4 Quadrilaterals and Other Polygons	89	(40)
Properties of Polygons	90	(8)
Properties of Quadrilaterals	98	(12)
Area and Perimeter of Quadrilaterals	110	(19)
Resources on the Web	127	(2)
PART 5 Circles and Their Parts	129	(26)
Tangents	131	(9)
Arcs and Angles	140	(6)
Chords	146	(9)
Resources on the Web	152	(3)
Glossary	155	(6)
Index	161