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(:title Copy an Angle: Compass and Straightedge with GeoGebra :) >>-<< [table border=1 cellpadding=3 width=810] [row] [] >>&<<%pra b%Given:%% An %pra%angle α%% with vertex %red%A%% and a %pra%line%% with point %ref%P%% on it. >>&<<%sol b%Goal:%%   Construct a %exa%(:showhide init=hide div=div100 lshow="congruent angle" lhide="congruent line segment":)%% on this line with vertex %ref%P%%. >>&<<%exa b%Note:%%  %s9%This InterActivity uses the GeoGebra Compass tool - release 3.2!%% (:div100 id=div100 :)            %s9%([[glossaryT/Congruent]]: the angles are the same size)%%. (:div100end :) >>-<< [row] [] [table cellpadding=5] [row] [c valign=middle width=40%] [[http://mathcasts.org/gg/enliven/mg/construct/angle_copy/angle_copy1.htm|%b reg%Mathcast: See & Do%%]] [c]%popwin id=1 width=670 height=570 %[[http://mathcasts.org/gg/enliven/mg/construct/angle_copy1/angle_copy1.htm|Attach:construct/construct_ang_copy1.jpg]] (:divend:) [row] [ colspan=2]       %s8%Reference: %newwin%[[http://www.mathopenref.com/constcopysegment.html|%s8%http://www.mathopenref.com/constcopyangle.html]] [tableend] [tableend] >>&<< [table border=1 cellpadding=3 width=810] [row] [] (:showhide init=show div=div313 lshow="+" lhide="-":) Interactivity: Copy an angle %popwin id=2%[[HelpConstructAngleCopy|%s9 sol%Directions for Interactivity%%]] (:div311 id=div311 style="margin-left=20px" class="s9":) >>&<< (:div311end :) (:div313 id=div313 :) >>&<< (:div style="margin-left:20px":) %pra b%Go for it!%% Construct an angle and a line and then copy the angle onto the line.%% >>&<< (:applet name="ggbApplet" code="geogebra.GeoGebraApplet" codebase="./" archive="http://www.geogebra.org/webstart/3.2/geogebra.jar" width="700" height="400" filename="http://mathcasts.org/mtwiki/uploads/Construct/BasicConstruct.ggb" showResetIcon="true" showToolBar="true" showMenuBar="true":) >>&<< (:divend:) (:div313end :) [tableend] >>-<< (:showhide init=hide div=div1 lshow="+" lhide="-":) '''Metadata''' (:div1 id=div1 :) [table class=column border=1 width=810 cellpadding=3] [row] [ width=110px] Global [] Compass and Straightedge Constructions with GeoGebra [row] []Brief []Construction #3: Copy an angle (onto a line) [row] []Grade []5th-Geometry [row] []Strand []Measurement and Geometry, Geometry [row] []Standards []%popwin%[[standards/CA_5MG-2-1?action=popopen|CA 5.MG.2.7]] - %popwin%[[standards/CA_7MG-3-1?action=popopen|CA 7.MG.3.1]] - %popwin%[[standards/CA_GE-16?action=popopen|CA Geometry 16.0]] [row] []Keywords []construction, straightedge, compass, ruler, geogebra, geometry, angle, triangle, segment, copy [row] []Comments []none [row] []Download []You can download everything; a zip is in progress ... [row] []Author []LFS - [[mailto:emath@emathforall.com?subject=ggb_construct|contact]] [row] []Type []Freeware - Available for Offline and Online Use - Translatable (html) [row] []Use []Requires [[http://www.java.com/en/download/index.jsp|sunJava player]] [tableend] (:div1end :) >>-<< %s9 sol%Resource updated: 25 May 2009%% ---- >>&<< [table width=100% border=0] [row] [][[Construct/CompassStraightedge| Attach:main/tri_purple_up_a.gif ]] [[Construct/CompassStraightedge| Up one level]] [r](:html:) (:htmlend:) [tableend] %white%geometric, construct, construction, straightedge, compass, ruler, geogebra, application, geometry, program%%