yes
Yes.
yes, they do ,because they have two bases that are equilateral triangle and three faces that are rectangles.
All squares are rectangles, but not all rectangles are squares. Basically, a square is a rectangle where all sides are the same length. However, providing that the width is half of the length, or vice versa, and you join the two rectangles along the one of the sides that is longer, two rectangles can make a square. Example: 1x2 rectangle joined with another 1x2 rectangle will make a 2x2 square.
Two rectangles are similar if corresponding angles are equal and the corresponding sides are proportional.
Two rectangles are seldom but sometimes similar. They can be but they don't have to.
No.
A rectangle is defined as having two pairs of equal-length sides. Therefore, theoretically the answer is yes.
No
yes
Yes
No some times
no
Yes
Yes
No
They're sides may not be congruent.