Symmetry

There are 72 NRICH Mathematical resources connected to Symmetry
Reflecting Squarely
problem
Favourite

Reflecting squarely

Age
11 to 14
Challenge level
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In how many ways can you fit all three pieces together to make shapes with line symmetry?

Polydron
problem

Polydron

Age
7 to 11
Challenge level
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This activity investigates how you might make squares and pentominoes from Polydron.
Flower Power
problem

Flower power

Age
11 to 16
Challenge level
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Create a symmetrical fabric design based on a flower motif - and realise it in Logo.
Cocked Hat
problem

Cocked hat

Age
16 to 18
Challenge level
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Sketch the graphs for this implicitly defined family of functions.
Triangle Shapes
problem

Triangle shapes

Age
5 to 11
Challenge level
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This practical problem challenges you to create shapes and patterns with two different types of triangle. You could even try overlapping them.
Animated Triangles
problem

Animated triangles

Age
5 to 7
Challenge level
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Watch this "Notes on a Triangle" film. Can you recreate parts of the film using cut-out triangles?
Maltese Cross
problem

Maltese cross

Age
16 to 18
Challenge level
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Sketch the graph of $xy(x^2 - y^2) = x^2 + y^2$ consisting of four curves and a single point at the origin. Convert to polar form. Describe the symmetries of the graph.
Two triangles in a Square
problem

Two triangles in a square

Age
14 to 16
Challenge level
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Given that ABCD is a square, M is the mid point of AD and CP is perpendicular to MB with P on MB, prove DP = DC.
Tiles in a public building
problem

Tiles in a public building

Age
7 to 11
Challenge level
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What is the same and what is different about these tiling patterns and how do they contribute to the floor as a whole?