Difference between trapezium and trapezoid.
Difference between trapezium and trapezoid
The trapezium is a four-sided polygon in which one pair of parallel sides are opposite to each other.
The trapezoid is also a four-sided polygon in which one of the parallel sides is opposite to the other.
Therefore, both the terms, trapezium, and trapezoid are the same, but they are spelled differently in different countries.
According to US English, it is a trapezoid and according to UK English, it is a trapezium.