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Geometry


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    • Area of inscribed equilateral triangle (some basic trig used) | Circles | Geometry | Khan Academy

    • Area of inscribed equilateral triangle (some basic trig used) | Circles | Geometry | Khan Academy

    • Similar triangle example problems | Similarity | Geometry | Khan Academy

    • Similarity postulates | Similarity | Geometry | Khan Academy

    • Similar triangles (part 2) | Similarity | Geometry | Khan Academy

    • Similar triangle basics | Similarity | Geometry | Khan Academy

    • 30-60-90 triangle side ratios proof | Right triangles and trigonometry | Geometry | Khan Academy

    • 30-60-90 Triangles II

    • 45-45-90 triangle side ratios | Right triangles and trigonometry | Geometry | Khan Academy

    • Congruent triangles and SSS | Congruence | Geometry | Khan Academy
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