Complementary Angles

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Author:

John Page

Subject:

Mathematics and Statistics

Institution Name:

Math Open Reference

Collection:

Math Open Reference

Grade Level:

Secondary

Grade Sub-Level:

Middle School

Grades:

Grade 7

Abstract:

An interactive applet and associated web page that demonstrate the concept of complementary angles (angles that add to 90 degrees). The applet shows two angles. You can drag the endpoints of each angle and the other angle changes so that they always add to 90 degrees. They are drawn in such a way that it is visually obvious that together they form a right angle, although they are separate on the page. The angle measure readouts can be turned off for class discussions. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Course Type:

Learning Module

Languages:

English

Material Type:

Readings, Simulations

Media Format:

Graphics/Photos, Text/HTML

Technical Requirements:

Java

Conditions of Use:

Custom Permissions
User may: * Use, view and link to any page on the site. * Print any page and distribute printed copies on a non-commercial basis. User may charge to cover the costs of printing and distribution. * Create courses or other documents that have links to any page in the site, even if that makes it look like the pages are part of the course, so long as the page contents are not modified. User may not: * Copy any file on the site electronically, other than for the purposes stated above.

Copyright Holder:

Copyright 2009 John Page