Acute Angle

Author:

John Page

Subject:

Mathematics and Statistics

Institution Name:

Math Open Reference

Collection:

Math Open Reference

Grade Level:

Secondary

Abstract:

An interactive applet and associated web page that demonstrate acute angles (those less than 90 deg). The applet presents an angle (initially acute) that the user can adjust by dragging the end points of the line segments forming the angle. As it changes it shows the angle measure and a message that indicate which type of angle it is. There a software 'detents' that make it easy capture exact angles such as 90 degrees and 180 degrees The message and angle measures can be turned off to facilitate classroom discussion. The text on the page has links to other pages defining each angle type in depth. 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