Year 9 Explaining, convincing and proving

  • Subtended angles
    problem

    Circumference Angles

    Age
    11 to 16
    Challenge level

    Can you prove the angle properties described by some of the circle theorems?

  • Generating Triples
    problem
    Favourite

    Generating Triples

    Age
    14 to 16
    Challenge level

    Sets of integers like 3, 4, 5 are called Pythagorean Triples, because they could be the lengths of the sides of a right-angled triangle. Can you find any more?

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