Question

search information on qudrilateral ( defination , properties , name of inventor ) with examples

Answer 1

a quadrilateral is a polygon and in fact it is a four sided polygon just like a triangle is a three sided polygon a pentagon is a five sided polygon and so on .
there are certain properties of some quadrilateral like parallelogram have diagonally opposite angles that are equal opposite sides are of equal length and opposite sides are parallel and the diagonals bisect each other as an example .
quadrilaterals were invented by the ancient greeks .