Quadrilaterals

  • Guess \my Quad
    problem
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    Guess My Quad

    Age
    11 to 14
    Challenge level
    filled star empty star empty star

    How many questions do you need to identify my quadrilateral?

  • Shapely pairs
    problem
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    Shapely Pairs

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    A game in which players take it in turns to turn up two cards. If they can draw a triangle which satisfies both properties they win the pair of cards. And a few challenging questions to follow...

  • Property chart
    problem
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    Property Chart

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    A game in which players take it in turns to try to draw quadrilaterals (or triangles) with particular properties. Is it possible to fill the game grid?

  • Opposite vertices
    problem
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    Opposite Vertices

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    Can you recreate squares and rhombuses if you are only given a side or a diagonal?

  • Quadrilaterals in a Square
    problem
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    Quadrilaterals in a Square

    Age
    11 to 14
    Challenge level
    filled star filled star empty star

    What's special about the area of quadrilaterals drawn in a square?

  • Square It
    problem
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    Square It

    Age
    11 to 16
    Challenge level
    filled star empty star empty star

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.

  • Parallelogram It
    problem
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    Parallelogram It

    Age
    11 to 16
    Challenge level
    filled star empty star empty star

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

  • Rhombus It
    problem
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    Rhombus It

    Age
    11 to 16
    Challenge level
    filled star filled star empty star

    Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.

  • circles in quadrilaterals
    problem
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    Circles in Quadrilaterals

    Age
    14 to 16
    Challenge level
    filled star empty star empty star

    Explore when it is possible to construct a circle which just touches all four sides of a quadrilateral.

  • Areas of parallelograms
    problem
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    Areas of Parallelograms

    Age
    14 to 16
    Challenge level
    filled star filled star empty star

    Can you find the area of a parallelogram defined by two vectors?