A trapezium is a 2D quadrilateral which means it has four sides, four vertices, and four angles.
• In a trapezium, two parallel sides are known as bases and the other two non-parallel sides are called legs.
• Trapezium has one set of opposite sides which is parallel to the other.
• The diagonals of the trapezium intersect each other and Both diagonals are the same length.
• The line connecting the non-parallel sides' midpoints is always perpendicular to their bases, which is equal to half of the total number of parallel sides.
• In a trapezium, the sum of all four internal angles is always 360°.