The large intestine... What does the heart do and what system is it. The heart pumps blood to the body and consists of left nd right tre nd one ventricle.... What does the lungs do and what system is it from. In the lungs oxygen enters the blood and carbon dioxcide is realised into the air.
The definition of a trapezoid is a shape with four sides, only two of which are parallel. An example of a trapezoid is the base of a pyramid when the top is flat and there is not a point. 1  a plane figure with four sides, only two of which are parallel.  Brit. trapezium (sense )
A: Some shapes that have no lines of symmetry include the scalene triangle and trapezium. A trapezium is a four-sided flat shape with straight sides, none of which are parallel. Outside of the United States, the trapezium is called the general irregular quadrilateral.