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 trapezoid is a special quadrilateral (have four sides) having one pair of parallel sides and other pair is non-parallel sides. In American English it is used as trapezoid and in the British English it is used as trapezium.bases are called parallel sides of trapezoid and non parallel sides are called leg..