Mammoth Memory

Trapezium or trapezoid

Trapezium/Trapezoid (in USA) – is a triangle chopped in half horizontally. It’s shaped like a lobster trap. It is a shape with 4 sides but has a pair of opposite sides that are parallel.

A trapezoid is the same shape as a lobster trap

A trap with a void (trapezoid) for a lobster is shaped like a trapezoid.


Example 1

A trapezoids has parallel lines at the top and the bottom

 This trapezium has parallel sides at the top (5m) and the bottom (8m).


Example 2

An upside down trapezoid is still a trapezoid

This trapezium also has parallel sides top and bottom, but is upside down. It is still a trapezium.

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