Area Intrigue
We usually measure area using a unit based on a square. In this feature, we invite you to explore area using triangular units, and see what relationships you can discover!
Isometric Areas Age 11 to 14
Challenge Level
Challenge Level
We usually use squares to measure area, but what if we use triangles instead?
More Isometric Areas Age 11 to 14
Challenge Level
Challenge Level
Isometric Areas explored areas of parallelograms in triangular units. Here we explore areas of triangles...
Of All the Areas Age 14 to 16
Challenge Level
Challenge Level
Can you find a general rule for finding the areas of equilateral triangles drawn on an isometric grid?
Towering Trapeziums Age 14 to 16
Challenge Level
Challenge Level
Can you find the areas of the trapezia in this sequence?
Perimeter, Area and Volume Short Problems Age 11 to 16
A collection of short problems on area and volume.
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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.