Opposite sides are congruent in every parallelogram.
Adjacent sides are congruent only if the parallelogram
happens to be a rhombus.
Some paralleograms are rectangles. A right paralleogram is a rectangle. In the case of a rectangle, all angles formed by the sides are right angles and opposite sides are parallel. The sum of adjacent angles in a parallelogram is 180 degrees.
obtuse
A square has all sides congruent so therefore adjacent sides are congruent or equal.Yes and it has 4 equal angles of 90 degrees
This is a parallelogram. The first requirement is 2 pairs of congruent sides where the congruent sides are not adjacent. This is like a rectangle (excluding a square) that has two pairs of congruent sides where the congruent sides are not adjacent. But the angles are not all congruent (as set in the question) which pushes the shape into the "next less regular" shape, the parallelogram. The angles will not all be congruent, but it will have 2 pairs of congruent angles. There is no way to avoid the 2 pairs of congruent angles because of the requirement that the shape must have 2 pairs of congruent sides (the first requirement).
The adjacent sidesof a rhombus are always congruent... that's one of the identifying factors. A rhombus has all sides congruent, opposite sides parallel, and bisecting diagonals.
Rectangle: A quadrilateral with 4 right angles, diagonals congruent/bisecting, and opposite sides congruent, BUT ADJACENT SIDES ARE NOT CONGRUENT. Rhobus: A quadrilateral with opposite congruent angles, but adjacent angles are Not congruent, perpendicular bisecting diagonals and 4 congruent sides. Square: A quadrilateral that is a rectangle and a square with 4 right angles, diagonals congruet/bisecting that ar perpendicular, and opposites sides congruent.
A cube is a rectangular prism with all its sides congruent and angle between any two adjacent sides = 90 degrees.Rectangular prism does not necessarily have all its sides congruent and angle between any two adjacent sides = 90 degrees.
Either a square, rectangle, or parallelogram fit this description.
No, rectangles do not have congruent sides. Squares have congruent sides.
It all depends on what kind of polygon it is. It may have no congruent sides or all congruent sides.
All regular shapes have congruent sides.
Yes! All six sides of a hexagon are congruent. It doesn't have to have all sides congruent. A hexagon only needs six sides to be a hexagon.