Building
a Bookcase
What homeschooling teen doesn't need another bookcase? Use what
you've learned about geometry to make sure this case is nice
and square. From Popular Mechanics.
Euclid's
Elements
Uses Java Applets to illustrate and enhance interactive geometry
lessons. Superb site. All 13 books are on the site, making this
a complete geometry course. Free.
Formulas
for Areas, Volumes, Surface Areas
List and illustrations.
Free
Geometry Help
Browse our collection of geometry lessons: Area, Circles, Graphing
Lines, Graphing Rational Functions, Slope of a Line.
Geodesic
Club House
What good are equilateral triangles, you may ask? For building
forts to hide out from siblings that's what!
Geometry Center, The
Help learning geometry. Even has courses available.
Geometry
- Math for Morons Like Us
Everything from parallel lines to volumes of prisms and a couple
of word problems are covered.
Geometry Step by
Step from the Land of the Incas
It provides an eclectic mix of sound, science, and Incan history
intended to interest students in Euclidean geometry. The site
includes geometry problems, proofs, quizzes, puzzles, quotations,
scientific speculation, and more.
The
Golden Mean
The Golden Mean is a ratio that is present in the growth patterns
of many things--the spiral formed by a shell or the curve of
a fern, for example. The Golden Mean or Golden Section was derived
by the ancient Greeks. Like "pi", the number 1.618...
is an irrational number.
High
School Conic Sections, Circles
Stars indicate particularly interesting answers or good places
to begin browsing.
Lesson
on Circumference of a Circle
The distance around a circle is called the circumference. The
distance across a circle through the center is called the diameter.
Pi is the ratio of the circumference of a circle to the diameter.
The
Living Witch of Agnesi
This is a gif animation of the curve known as the 'Witch of Agnesi.'
It will cycle 5 times showing how the curve is defined graphically
using the formula y = a3/(x2 + a2)
Math.com
Homework Help Geometry NEW
Free math lessons and math homework help from basic math to algebra,
geometry and beyond. Students, teachers, parents, and everyone
can find solutions to their math problems instantly.
Math Lab
Hands-on geometry. In his Elements, Euclid laid the foundations
of mathematics based solely on physical tools, straightedge and
drawing compass. This site offers virtual straightedge and compass,
through a Java applet named after Euclid.
NonEuclid
- Hyperbolic Geometry Article & Applet
Advanced. Hyperbolic Geometry is a geometry of Einstein's General
Theory of Relativity and Curved Hyperspace.
Pythagorean
Puzzle
Here's the deal; there was this Greek guy named Pythagoras,
who lived over 2,000 years ago during the sixth century B.C.E.
Pythagoras spent a lot of time thinking about math, astronomy,
and music.
Postulates,
Theorems, and Corollaries from Geometry
List with links to proofs for each theorem.
Protractor
Janee made this lovely protractor for you to use on your computer
for graphics projects. It could be printed on heavy paper and
used offline as well.
Quickie
Math
This site can help a student in the wonderful world of Geometry.
This site was made for students who wants to fill their hunger
to doing well in Geometry, friends that want to kill some time,
or just a person who wants to learn about Geometry.
Science U's
Geometry Center
Shapes, Patterns, Symmetry! You will find these themes everywhere
in the Geometry Center. Browse through an exhibit, or jump right
in and start experimenting.
Webmath Geometry
Circles, Squares, Rectangles, Spheres, Cylinders, Boxes, Right
triangles, Cones