A heptagon has 7 sides
No. If you made a parallelogram with congruent sides it wouldn't necessarily have congruent angles. A square has to have congruent angles as well as congruent sides.
It all depends on what kind of polygon it is. It may have no congruent sides or all congruent sides.
They are sometime congruent because a square is a parallelogram and its sides are congruent and a rectangle is one and its sides aren't congruent.
No. The word congruent is not applied to sides or angles.
A heptagon has 7 sides
No! A heptagon has 7 sides, a parallelogram has 4.
No, rectangles do not have congruent sides. Squares have congruent sides.
No. If you made a parallelogram with congruent sides it wouldn't necessarily have congruent angles. A square has to have congruent angles as well as congruent sides.
Every cube has six congruent sides. If it doesn't have six congruent sides, then it's not a cube.
It has 2 congruent sides
It has four congruent sides.
A parallelogram with congruent sides is a rhombus.
It can have two congruent sides but does not have to.
No, it has 4 congruent sides.
A parallelogram has two pairs of congruent sides, and the opposite sides are congruent.
No. A rectangle has opposite sides congruent. If consecutive sides are also congruent, then your rectangle is a square.