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  1. Year 9 Mathematics
    1. Geometry

    Year 9 Mathematics

    Author:Patrick Robertson
    Topic:Angles, Congruence, General Quadrilateral, Geometry, Mathematics, Polygons, Similar Triangles, Geometric Transformations, Triangles

    Geometry

    • Complementary Angles Meaning

    • Supplementary Angles Meaning

    • Vertical Angles Exploration (1)

    • Exploring Alternate Interior Angles (V2)

    • Exploring Alternate Exterior Angles (V2)

    • Corresponding Angles and Parallel Lines

    • Same-Side-Interior Angles: Quick Investigation

    • Same-Side-Exterior Angles: Quick Investigation

    • Transversal Intersects Parallel Lines

    • Exploring Polygon Angles: Triangle through Octagon

    • Polygons: Exterior Angles - REVAMPED

    Next
    Complementary Angles Meaning

    New Resources

    • Regular Polygons and Equivalent Triangles
    • apec
    • bewijs stelling van Pythagoras
    • Sum of Squares: Proof without Words
    • Slope Between 2 Points (Phase 2)

    Discover Resources

    • map project
    • day 108
    • การสร้างกราฟสามมิติ
    • P1.2.2

    Discover Topics

    • Natural Numbers
    • Scalene Triangles
    • Frequency Distribution
    • Rectangle
    • Conditional Probability
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