It is not possible to answer the question since there are no polygons "following".
the diagonals of a trepazoid always congruent?
In a quadrilateral, the diagonals are only congruent for rectangles (or squares, which is a special kind of rectangle). Note: they are not congruent for a Rhombus.
similar polygons may not be congruent (different sizes) congruent polygons are always similar (equal in every geometric respect - including
rectangle
It is not possible to answer the question since there are no polygons "following".
All regular polygons.
square and rectangle
the diagonals of a trepazoid always congruent?
No. The diagonals are perpendicular, but they dont have to be congruent.
Yes the diagonals of a square are always congruent. Their length is a*root 2 where a is the side of the square.
No. The diagonals of a parallelogram are congruent if and only if the parallelogram is a rectangle.
In a quadrilateral, the diagonals are only congruent for rectangles (or squares, which is a special kind of rectangle). Note: they are not congruent for a Rhombus.
similar polygons may not be congruent (different sizes) congruent polygons are always similar (equal in every geometric respect - including
Any regular polygon. Lots of irregular polygons can also have congruent diagonals, for example a kite. The answer should not be "a square" because it is a rectangle - a special case but a rectangle nevertheless.
rectangle
A square and a rectangle have diagonals of the same lengths.