They can be but it's not necessary. When they are, it's
a special kind of parallelogram, called a "rhombus".
In a parallelogram, adjacent sides are not equal; rather, opposite sides are equal in length. This means that if one pair of opposite sides is equal, the other pair will also be equal, but the adjacent sides can be of different lengths. For example, in a rectangle (which is a type of parallelogram), adjacent sides can be unequal, while in a rhombus, all sides are equal.
A parallelogram has adjacent equal sides. Diagonals of a parallelogram bisect each other,Opposite sides of a parallelogram are parallel and will never intersect. The area of a parallelogram is twice the area of a triangle created by one of its diagonals. Any line through the midpoint of a parallelogram bisects the area.
A 'KITE' ; two adjacent sides may be of equal length. A parallelogram has two pairs of equal and parallel sides.
quadrilateral -- any such trapezoid- two parallel sides parallelogram : two pairs of parallel sides rectangle - special type of parallelogram with a right angle rhombus: parallelogram with two equal adjacent sides. square: a rectangle with two equal adjacent sides or a rhombus that is a rectangle.
a parallelogram
no. Not necessarily. A rhombus is a parallelogram with equal adjacent sides. Gererally, though they will be unequal.
In a parallelogram, adjacent sides are not equal; rather, opposite sides are equal in length. This means that if one pair of opposite sides is equal, the other pair will also be equal, but the adjacent sides can be of different lengths. For example, in a rectangle (which is a type of parallelogram), adjacent sides can be unequal, while in a rhombus, all sides are equal.
A parallelogram has adjacent equal sides. Diagonals of a parallelogram bisect each other,Opposite sides of a parallelogram are parallel and will never intersect. The area of a parallelogram is twice the area of a triangle created by one of its diagonals. Any line through the midpoint of a parallelogram bisects the area.
A rhombus
equilateral parallelogram
Parallelogram
A 'KITE' ; two adjacent sides may be of equal length. A parallelogram has two pairs of equal and parallel sides.
the diagonal in a paralleogram is not equal but the diagonals in the rectangle are congruent this is because the opposite sides of a parallelogram and rectangle are same parallel to each other but the adjacent sides of a parallelogram is not perpendicular where as the adjacent sides of rectangle is perpendicular to each other.
A parallelogram
A square.
a parallelogram
quadrilateral -- any such trapezoid- two parallel sides parallelogram : two pairs of parallel sides rectangle - special type of parallelogram with a right angle rhombus: parallelogram with two equal adjacent sides. square: a rectangle with two equal adjacent sides or a rhombus that is a rectangle.