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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

    Next
    Triangle Sides and Angles

    New Resources

    • Trefoil Knot
    • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
    • Untitled
    • רישום חופשי
    • bewijs stelling van Pythagoras

    Discover Resources

    • CCGPS CA 3.8.1 Example 3
    • perpendicular bisectors of sides of a triangle
    • Lines have same cardinality
    • An.Theorem 06 - Exterior angle theorem

    Discover Topics

    • Step Functions
    • Coordinates
    • Rhombus
    • Centroid or Barycenter
    • Derivative
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