A square and rectangle are two of them out of many many more
One possible pair is a cube and a parallelepiped. Vertices and corners are the same thing!
A cube or a cuboid both have 8 corners which are known as vertices
A Rectangle
A coroner is an official who leads investigations into deaths in violent or suspicious conditions. It is not clear that there are any particular shapes that reduce their numbers.If you meant corners, then in 2-dimensional space is any closed curve such as a circle, an ellipse, an oval or even an irregular shape have zero corners. These shapes have their 3 dimensional counterparts, also with no corners.
There is only the rectangle, with a square as a special case.
no. Equilateral is the same amount of sides on 2 different shapes. and acute is smaller than a 90 degree angle.
2 side 2 corners and same lenght
Congruent shapes.
Two shapes that are the same shape and size are congruent.
A parallelogram has 2 pairs of parallel sides, and provided that it isn't a square, it has no square corners. If necessary, you could call it an "oblique parallelogram" to indicate that it isn't square.
Yes.
It is very possible considering non-closed shapes. For example, picture the letter "M" but drawn into the third dimension, sort of like a open roof gutter (which has 2 corners and 3 sides). It will have 3 corners and 4 sides (an "L" would have 1 corner and 2 sides).