Parallelograms are squares is sometimes true.
Squares are parallelograms is always true.
Rhomboids are parallelograms is also always true.
So not all parallelograms are squares but some are.
an equation ---------- has a soultion? a)always B)sometimes C)never
The negation of always is sometimes or never.
yes * * * * * Never. A parallelogram has two pairs of equal angles opposite one another. A trapezoid does not.
Sometimes they are.
Some parallelograms are squares - the ones which are equiangular (have equal angles) and are equilateral (have equal side lengths). All squares are parallelograms, but only some parallelograms are squares.
-- A parallelogram is always a quadrilateral. -- A quadrilateral is sometimes a parallelogram.
It is sometimes true that two parallelograms are similar. The could be congruent, or dissimilar in that one is not an enlargement of the other.
Sometimes * * * * * Never. A parallelogram has two pairs of equal angles opposite one another. A trapezoid does not.
No. Parallelograms are never trapezoids. Trapezoids are never parallelograms.
A quadrilateral always has four sides.A square always has four sides→ a square is always a quadrilateral.A quadrilateral's only distinguishing feature is a shape with four sides.A square has four sides, but also those four sides must all be the same length and all the angles are the same, at 90o.So squares are always quadrilaterals, but quadrilaterals are only sometimes squares.