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Equal Equilateral Triangles
Can you make a regular hexagon from yellow triangles the same size as a regular hexagon made from green triangles ?
The Square Hole
If the yellow equilateral triangle is taken as the unit for area, what size is the hole ?
Age 14 to 16
Challenge Level
If you are walking along a number line, how far apart are the thirds, quarters, fifths... hundredths?
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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.