No, a quadrilateral must have 4 sides. If it is a proper quadrilateral it must have 4 sides of equal length but if it is an irregular quadrilateral it must have 4 sides but not have equal sides. An example of a quadrilateral could be a square. A pentagon on the other side must have 5 sides.
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a quadrilateral has four sides and pentagon has 5.
A rhombus is not a pentagon, it's a quadrilateral.
Oh, dude, a pentagon has one more side than a quadrilateral. I mean, it's right there in the names, like "penta" for five and "quad" for four. So, yeah, pentagon is like a quadrilateral but with an extra side to keep things interesting.
It is a pentagon which has 5 sides
an irregular triangle, quadrilateral, pentagon, hexagon, etc.