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11,557 bytes removed ,  17:26, 13 August 2014
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=Geogebra Applet=
 
=Geogebra Applet=
 
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<br>
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=='''Slopes of parallel and Perpendicular lines'''==<br>
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Play with the following Geogebra applet <br>
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From the following geogebra applet we can visualise that slope of two parallel lines are same and slope of two perpendicular lise are negetive resiprocals of each other
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Slopes of Parallel and Perpendicular lines<br>
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enableRightClick="false" showAlgebraInput="false" enableShiftDragZoom="true" showMenuBar="false" showToolBar="false" showToolBarHelp="true" enableLabelDrags="false" showResetIcon="true" />
      
= Hints for difficult problems =
 
= Hints for difficult problems =
499

edits

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