Dr. Math tackles a question about deriving the formula for a hyperbola posed by a student.

Dr. Math, in a reply to a student question, discusses how to calculate the surface area of an ellipsoid.

This is a question/response site with the topic of volume. A student asks for help finding the volume of a tent, a cube, and other regularly dimensioned objects.

This question and answer site provides a lot of basic information about polyhedra. The five regular polyhedra, "The Platonic Solids," are described.

This site from the Drexel University is a detailed explanation of area and volume for those who have trouble with the concept and need an explanation of how they are related and their differences, and other basic concepts for a clear...

Use this site to findout how to find the distance from a point to a plane.

Dr. Math at the Math Forum offers a way of remembering alternate exterior and alternate interior angles by looking at the words and realize what they say and apply it to the picture.

Click on the "Cards" dropdown menu and choose "Fractions". Play concentration matching fractions, fraction words, and visual representations for fraction amounts. Pick numbers from 1 to 6 or 1 to 10. One or two can play this game.

This site explains prime number theory and how to find prime numbers.

Dr. Math at the Math Forum explains the difference between equivalent expressions and equivalent equations.

In responding to a student question, Dr. Math provides a brief overview of hyperbolic functions.

This page gives a brief explanation on how to compute compound interest.

At this site Dr. Math answers a question about credit card balance payoffs. An advanced algebraic solution is offered.

This question and answer site provides information about stellated dodecahedrons, as well as several internet links to this topic.

This question and answer site covers lateral area, total area, and volume of a rectangular solid.

This question and answer site poses a problem dealing with the volume of a partly filled cone.

This question and answer site gives the formulas for area and volume of a cone.

This Q & A forum has a question answered on how to find the apothem of a hexagon.

Contains a short summary on imaginary numbers and several links to its related fields. Also provides several examples and explanations for understanding.

This Math Forum site contains a brief proof of De Moivre's Theorem ((cos(x)+isin(x))^n = cos(nx) + isin(nx)) Where n is an integer.

Description of the unit vector and its relationship to the unit circle.

Illustrates and describes how to add two vectors graphically.

Definition of dot product and an application.

Description of finding the formula for the dot product of any two vectors.