add all sides together :D
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Sum of all sides
can any one tell me wat is a trapezium
A trapezium has two diagonals.
The interior angles of a trapezium = 360°The British definition of a trapezium is a quadrilateral with one pair of parallel sides.
A trapezium, parallelogram, rhombus, rectangle, square.A trapezium, parallelogram, rhombus, rectangle, square.A trapezium, parallelogram, rhombus, rectangle, square.A trapezium, parallelogram, rhombus, rectangle, square.