This just means that opposite sides in a shape (sides that 'look' at each other) are of equal lengths.
It is not clear what you mean by "has 4 right sides opposite sides equal". If you delete the phrase "4 right sides", the answer is a rhombus.
A regular square or a rhombus if you mean all four sides are equal in length, a parallelogram if you mean the opposite sides are equal.
A parallelogram is a four sided shape where opposite sides are parallel and equal lengths. If you mean that ALL sides are equal lengths, you are looking for a rhombus.
A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal
This just means that opposite sides in a shape (sides that 'look' at each other) are of equal lengths.
a decagon i believe has either 5 or 20 opposite sides * * * * * A decagon has 10 sides so I cannot see how it could have 20 opposite sides. It has 5 pairs of opposite sides but this does not mean that these opposite sides face each other. In an irregular decagon it is quite possible for opposite sides to be at right angles or at any angle to each other.
It is not clear what you mean by "has 4 right sides opposite sides equal". If you delete the phrase "4 right sides", the answer is a rhombus.
A regular square or a rhombus if you mean all four sides are equal in length, a parallelogram if you mean the opposite sides are equal.
A parallelogram is a four sided shape where opposite sides are parallel and equal lengths. If you mean that ALL sides are equal lengths, you are looking for a rhombus.
If two opposite sides are congruent in length and direction then they are parallel sides. THat would mean the other two sides are congruent making 4 parallel sides or a parallelogram
A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal
If you mean on opposite sides yes. There are 2 pairs of congruent angles.
I assume you mean a "parallelogram". Yes. In a square, opposite sides are parallel. Also, opposite sides are congruent. Any of these criteria is sufficient to have a parallelogram.
paramid
rectangle
Opposite sides are parallel.Opposite sides are congruent.Opposite angles are congruent.