they have 4 sides angles an corners :]
A trapezium.
An irregular shape
rectangle
Any shape with 4 acute angles must have more than 4 sides. Any shape with more than 4 sides can have 4 acute angles (but doesn't have to).
rectangle or square
A QUADRILATERAL has four corners and four sides, along with four angles. These do not need to be congruent (equal) but they can be.
they have 4 sides angles an corners :]
4 sides 4 interior angles 4 corners
A trapezium.
A shape with 4 right angles and 4 equal sides is a square. ==========================
A RECTANGLE has 4 sides and 4 right angles.
An irregular shape
2 sides, 2 corners. (:
rectangle
rectangle
Any shape with 4 acute angles must have more than 4 sides. Any shape with more than 4 sides can have 4 acute angles (but doesn't have to).