If the diagonals are congruent and are perpendicular bisectors of each other then the parallelogram is a square. If the diagonals are not congruent but are perpendicular bisectors of each other then the figure would be a rhombus.
None! If the angles are not congruent then the shapes are not similar of congruent. But that is not a problem. The angles of an equilateral triangle are not congruent to the angles of a square but that does not mean that you cannot work with equilateral triangles or squares!
Divide a pair of opposite sides into 20 and then join the opposing points. This will create 20 congruent strips.
A rhombus (4 congruent sides, diagonals perpendicular)that is not also a square (no right angles), andis also a parallelogram (opposite sides parallel and congruent, opposite angles congruent). It is also a quadrilateral, which has 4 sides.
No two equilateral triangles do not make a square but two right triangles do.
Only the square has.
the squares diagonal are all congruent to each other, and the diagonals make 4 isoceles triangles.
False. There are 6 pairs of smaller congruent triangles and two pair of larger ones.
Yes the diagonals of a square are always congruent. Their length is a*root 2 where a is the side of the square.