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→Activity No # 2. Angle sum property of a triangle
# They should have prior knowledge about angles formed when a transversal cuts a pair of parallel lines and the relationship between them.
# They should have prior knowledge about angles formed when a transversal cuts a pair of parallel lines and the relationship between them.
* Multimedia resources:Laptop
* Multimedia resources:Laptop
* Website interactives/ links/ Geogebra Applets:
* Website interactives/ links/ Geogebra Applets: Geogebra file 1.
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enableRightClick="false" showAlgebraInput="false" enableShiftDragZoom="true" showMenuBar="false" showToolBar="false" showToolBarHelp="true" enableLabelDrags="false" showResetIcon="true" />
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enableRightClick="false" showAlgebraInput="false" enableShiftDragZoom="true" showMenuBar="false" showToolBar="false" showToolBarHelp="true" enableLabelDrags="false" showResetIcon="true" />
* Process (How to do the activity):
* Process (How to do the activity):
# The teacher can initially recaptulate about a triangle, its vertices, sides and angles.
# The teacher can initially recaptulate about a triangle, its vertices, sides and angles.