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45-45-90 triangle

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Description

Overview:
An interactive applet and associated web page that demonstrate the properties of a 45-45-90 isosceles right triangle. The applet shows a right triangle that can be resized by dragging any vertex. As it is dragged, the remaining vertices change so that the triangle's angles remain 45 degrees, 45 degrees and 90 degrees The text on the page points out that the sides of a 45-45-90 triangle are always in the ratio of 1 : 2 : root 2 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.
Subject:
Geometry
Material Type:
Reading, Simulation
Author:
Provider:
Math Open Reference
Date Added:
02/16/2011
License:
http://www.mathopenref.com/site/terms.html
Language:
English
Media Format:
Graphics/Photos, Text/HTML

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Average Score (3 Points Possible)
Degree of Alignment0.7 (3 users)
Quality of Explanation of the Subject Matter1 (3 users)
Utility of Materials Designed to Support Teaching1 (1 user)
Quality of AssessmentsN/A
Quality of Technological Interactivity1.7 (3 users)
Quality of Instructional and Practice ExercisesN/A
Opportunities for Deeper Learning1 (1 user)

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