Regular polygons with even sides if there are 6 or more of them; selected irregular polygons with seven or more odd numbers of sides.
The diagonals of a parallelogram are parallel and the same length.
Yes.Yes.Yes.Yes.
Not in our Universe they're not!
Because the diagonals in a square are at right angles to one another!
noNo, the diagonals of a rhombus are perpendicular to each other.Unless the rhombus is regular (and called a square) the diagonals are of different lengths.
both are parallel
The diagonals of a parallelogram are parallel and the same length.
rectangle
Not in our Universe they're not!
Yes.Yes.Yes.Yes.
No, the diagonals of a trapezoid are not always congruent. A trapezoid is a quadrilateral with at least one pair of parallel sides. The diagonals of a trapezoid connect the non-parallel vertices, and their lengths can vary depending on the specific dimensions of the trapezoid. In a trapezoid where the non-parallel sides are of equal length, the diagonals will be congruent, but this is not always the case.
Because the diagonals in a square are at right angles to one another!
noNo, the diagonals of a rhombus are perpendicular to each other.Unless the rhombus is regular (and called a square) the diagonals are of different lengths.
Rhombus, kite.
rectangles and squares
Parallelograms have parallel diagonals (these include squares, rectangles, rhombi, an trapezoids). Parallel lines are lines with the same slope that could carry on infinitely without intersecting. A parallelogram can have 1 or 2 sets of parallel lines.
diagonals.