The Math League
The Math League: Angles and Angle Terms: Right Angle
This tutorial on angles presents a short definition of a right angle.
The Math League
The Math League: Angles and Angle Terms: Supplementary Angles
This tutorial on angles with definitions and examples, provides a definition of supplementary angles. At the top of the page is a series of links for additional information on related subjects.
Quia
Quia: Irregular Plurals
Produced by Quia, to allow the user to take an eleven question quiz reviewing different types of angles.
Free Math Help
Free Math Help: Exterior Angle of a Triangle
This tutorial discusses exterior angles of a triangle. Example problems with explanations are included.
Free Math Help
Free Math Help: Special Pairs of Angles
The lesson investigates special pairs of angles. Topics explored include complementary, supplementary, and vertical angles. Students learn about the concept and view diagrams and exercises with solutions.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Complementary Angles
Find a quick, concise explanation of complementary angles. Several examples are given and explained showing different situations.
ClassFlow
Class Flow: Complementary Angles
[Free Registration/Login Required] Using a variety of Activstudio tools, students investigate complementary and supplementary angles.
Free Math Help
Free Math Help: Angles
The lesson investigates different types of angles used in geometry. Definitions and examples are included.
Shmoop University
Shmoop: Basic Geometry: Angles
The geometry resource explores angles. Descriptions, examples, and practice exercises are included.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Supplementary Angles
Find a quick, concise explanation of supplementary angles. Examples are given and clearly explained.
ClassFlow
Class Flow: Complementary and Supplementary Angles
[Free Registration/Login Required] This flipchart contains Complementary and Supplementary angles. This lesson integrates proofs as well as matching, and integrated assessment through out the lesson. Works well with the book Geometry for...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Vertical Angles
Find a quick, concise explanation of vertical angles. An example is given and clearly explained.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Proof the Inscribed Angle Theorem
Dr. Math gives a student a hint on how to prove that an inscribed angle is equal to 1/2 the central angle. You should know what the central angle and inscribed angle are to utilize this site.