what is a trapezium

A trapezium is a quadrilateral with exactly one pair of parallel sides. In North American English, it is called a trapezoid, while in British English, it is called a trapezium. The parallel sides of a trapezium are called bases, while the non-parallel sides are called legs. A trapezium has four sides, four angles, and four vertices. There are three different types of trapeziums: isosceles, scalene, and right. The area of a trapezium can be calculated using the formula: Area = 1/2 × Sum of parallel sides × height. The sum of all the angles of a quadrilateral is 360 degrees, so the sum of the angles of a trapezium is also 360 degrees.