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A measuring instrument similar to compasses with curved legs for measuring thickness (diameter) of curved (convex) objects or, turned outwards, for measuring cavities. Example

How much a container can hold. The number of cubic units a container can hold is called the capacity or volume of the container. Volume… Read More »Capacity

A calendar represents the way in which a year is broken up into months, weeks and days. Example

Calculating aid. Calculators are electronic. They are battery or solar powered. Example

A pair of numbers or letters that show the position of a point on the plane. The first number is always the x-coordinate, the second… Read More »Coordinates

A shape such as a shoe box. A cube-like prism. It has twelve edges, six faces and eight corners. The opposite faces are the same… Read More »Cuboid