Angle Copy

Page history last edited by Tim Fahlberg 16 years, 7 months ago

Home > Construct with GeoGebra -> Compass and Straightedge -> #3 Copy an Angle

#3 Copy an Angle - Basic C&S

#2 Copy Triangle

#4 Bisect Segment

Given: An angle α with vertex A and a line with point P on it.

Goal: Construct a angle on this line with vertex P.

(Congruent angle: the angles are the same size).

YouTube Mathcast or ScreenCast Mathcast (if YT is blocked)

Reference: http://www.mathopenref.com/constcopyangle.html

Exploring Interactivity: Watch and then explore the construction Directions for InterActivity

1. Click on Play to see the construction unfold.

2. Select the Move tool and click & drag points A, B and/or C. The copied angle is always congruent.

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

DIY GeoGebra Interactivity: Copy an angle Directions for Interactivity (opens in new window)

Go for it! Construct an angle and a line and then copy the angle onto the line.

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

Metadata

Global	Compass and Straightedge Constructions with GeoGebra
Brief	Construction #3: Copy an angle (onto a line)
Grade	5th-Geometry
Strand	Measurement and Geometry, Geometry
Standards	CA 5.MG.2.7 - CA 7.MG.3.1 - CA Geometry 16.0
Keywords	construction, straightedge, compass, ruler, geogebra, geometry, angle, triangle, segment, copy
Comments	none
Download	You can download everything; a zip is in progress ...
Author	LFS - contact
Type	Freeware - Available for Offline and Online Use - Translatable (html)
Use	Requires sunJava player