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  1. ICSE-ClassIX-Math
    1. 9.Triangles (congruency)

    ICSE-ClassIX-Math

    Author:Sekhar S
    ICSE Math activities of class IX https://cisce.org/UploadedFiles/PDF/12.%20ICSE%20Mathematics.pdf

    9.Triangles (congruency)

    • Triangle Sides and Angles

    • Angles opposite to equal sides (isosceles triangle)

    • Triangle Medians: Quick Investigation

    • Medians Centroid Theorem (Proof without Words)

    • Medians and Centroid Dance

    • Triangle Altitude Illustrator and Definition Writing Prompt

    • Drawing Orthocentre & Some Quiz

    • Triangle Exterior Angle

    • Polygons: Exterior Angles

    • SAS Theorem & Similarity

    • SAS: Dynamic Proof!

    • ASA Theorem?

    • gg

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    Triangle Sides and Angles

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