Symmetry

There are 72 NRICH Mathematical resources connected to Symmetry
Folium of Descartes
problem

Folium of Descartes

Age
16 to 18
Challenge level
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Investigate the family of graphs given by the equation x^3+y^3=3axy for different values of the constant a.
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.
LOGOSquares
problem

LOGOSquares

Age
16 to 18
Challenge level
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Ten squares form regular rings either with adjacent or opposite vertices touching. Calculate the inner and outer radii of the rings that surround the squares.
Mean Geometrically
problem

Mean Geometrically

Age
16 to 18
Challenge level
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A and B are two points on a circle centre O. Tangents at A and B cut at C. CO cuts the circle at D. What is the relationship between areas of ADBO, ABO and ACBO?
Cut Cube
problem

Cut Cube

Age
16 to 18
Challenge level
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Find the shape and symmetries of the two pieces of this cut cube.
Colouring Triangles
problem

Colouring Triangles

Age
5 to 7
Challenge level
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Explore ways of colouring this set of triangles. Can you make symmetrical patterns?
Topkapi Palace
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Topkapi Palace

These images are taken from the Topkapi Palace in Istanbul, Turkey. Can you work out the basic unit that makes up each pattern? Can you continue the pattern? Can you see any similarities and differences in the designs?