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Age 7 to 11
Challenge Level
isosceles triangle with sides 2, 5 and 5
equilateral triangle three sides of 4
a right angled triangle with sides 5, 4 and 3
two rectangles: 4, 2, 4, 2 and 5, 1, 5, 1
a square with 3, 3, 3, 3
a hexagon with sides 2, 2, 2, 2, 2, 2
a dodecahedron with twelve sides, each 1
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.