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→Concept 2: Properties of a Triangle
{{Geogebra|kUJ6udef}}
{{Geogebra|kUJ6udef}}
Download the Geogebra file and open/edit in your computer using the Geogebra application
Download the [https://teacher-network.in/OER/images/6/67/Angle_Sum_Property_of_a_Triangle.ggb Geogebra file] and open/edit in your computer using the Geogebra application
{{Geogebra|uyXcmvYD}}
{{Geogebra|uyXcmvYD}}