Parallelograms: Always, Sometimes, Never

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A rhombus is a square.

Sometimes

A square is a rectangle.

Always

A square is_____a rhombus

Always

An equiangular rhombus is a square.

Always

If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is_____a parallelogram

Always

If one pair of opposite sides of a quadrilateral is congruent and parallel, then the quadrilateral is______a parallelogram

Always

The diagonals of a rectangle are_____congruent

Always

The diagonals of a rectangle bisect eachother.

Always

The diagonals of a rhombus are______perpendicular bisectors of each other

Always

The diagonals of a rhombus_____bisect each other

Always

The diagonals of an isosceles trapezoid are congrent.

Always

A kite is a square.

Never

A trapezoid is a parallelogram.

Never

Consecutive angles of a square are______complementary

Never

Diagonals of a non-equilateral rectangle are______never angle bisectors

Never

The diagonals of a kite are the perpendicular bisectors of each other.

Never

There are more than two right angles in a trapezoid.

Never

There is one right angle in a parallelogram and it is not a rectangle.

Never

To prove a quadrilateral is a parallelogram, it is ________enough to show that one pair of opposite sides is parallel

Never

A quadrilateral with one pair of congruent sides and one pair of parallel sides is_____a parallelogram

Sometimes

A quadrilateral with one pair of sides congruent and on pair parallel is_______a parallelogram

Sometimes

A rectangle_______has perpendicular diagonals

Sometimes

A rectangle______has consecutive sides congruent

Sometimes

A rhombus is_____a rectangle

Sometimes

A rhombus is_____a square

Sometimes

An equilateral parallelogram is equiangular.

Sometimes

An equilateral quadrilateral is a square.

Sometimes

Consecutive angles of a quadrilateral are_______congruent

Sometimes

If a quadrilateral has three angles of equal measure, then the fourth angle must be a right angle.

Sometimes

If the measures of 2 angles of a quadrilateral are equal, then the quadrilateral is_____a parallelogram

Sometimes

The angles of a parallelogram are congruent.

Sometimes

The diagonals of a parallelogram are_______perpendicular bisectors of each other

Sometimes

The diagonals of a parallelogram_______bisect the angles

Sometimes

The diagonals of a parallelogram______bisect the angles of the parallelogram

Sometimes

The diagonals of a quadrilateral are perpendicular and the quadrilateral is not a rhombus.

Sometimes

The diagonals of a quadrilateral_____bisect each other

Sometimes

The diagonals of a rectangle are the bisectors of the angles.

Sometimes

The diagonals of a rhombus are equal.

Sometimes

The diagonals of a rhombus are_______congruent

Sometimes

The diagonals of a trapezoid are perpendicular.

Sometimes

The opposite angles of a parallelogram are supplementary.

Sometimes


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