If it is in the shape of a rectangle then it has 4 right angles
rectangle or square
No, parallelograms and rectangles cannot have reflex angles. This is because 1. The sum of their interior angles must be 360 degrees. 2. Opposite angles must be equal. 3. If it were the case that a reflex angle existed, two angles would have to be greater than 180 by 2. 4. But by 1, the two angles would now sum over 360, and that cannot occur for a four-sided polygon.
A rhombus has 4 equal sides. Its angles can be right angles, but don't have to be. A square is a type of rhombus.
The shape is all of the following: -- quadrilateral -- parallelogram -- rectangle -- rhombus -- square
A four edged star.
There are 4 types of angles which are acute, right, obtuse and reflex
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).
An irregular dodecagon.
Acute angle, right angle, obtuse angle and reflex angle
It is a rhombus or a parallelogram