Answers

2014-01-11T13:38:32+05:30
A simple closed figure bounded by four line segments is called quadilateral.
it can be constructed basically by joining any four non collinear  points.
1)a quadilateral which has one pair of parallel sides is called  trapezium.
2)a quadilateral in which both pairs of opposite sides are parallel is called parallelogram

a square and rectangle can be thought as special parallelogram
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