You would call it an irregular polygon.
Afraid not.
There is no specific name, except in the case of a triangle: scalene.
You should not call it simply an irregular polygon, because a regular polygon implies that ALL sides are equal and ALL angles are equal. So a rhombus, where all four sides are equal, is still irregular.
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a shape with equal sides
A Square a square Quadrilateral I think
triangle isosceles triangle
rectangle, square, equilaterals, rhombus, kite, trapezium
A pentagon. If the sides and angles are equal it is a REGULAR pentagon.