Always, Sometimes, or Never Quadrilaterals Always, Sometimes, or Never

A rectangle is a parallelogram. always Quadrilaterals A rectangle is a parallelogram. always

A parallelogram is a square Quadrilaterals A parallelogram is a square sometimes

A quadrilateral is a parallelogram. Quadrilaterals A quadrilateral is a parallelogram. sometimes

A trapezoid is a quadrilateral. Quadrilaterals A trapezoid is a quadrilateral. always

A parallelogram is a trapezoid. Quadrilaterals A parallelogram is a trapezoid. never

Quadrilaterals A square is a rectangle. always

Quadrilaterals A rhombus is a square. sometimes

Quadrilaterals A square is a rhombus. always

A kite has perpendicular diagonals. Quadrilaterals A kite has perpendicular diagonals. always

A diagonal in a rhombus bisects opposite angles. Quadrilaterals A diagonal in a rhombus bisects opposite angles. always

The consecutive angles in a parallelogram are congruent. Quadrilaterals The consecutive angles in a parallelogram are congruent. sometimes

The diagonals in a rhombus are perpendicular. Quadrilaterals The diagonals in a rhombus are perpendicular. always

In a trapezoid the base angles are congruent. Quadrilaterals In a trapezoid the base angles are congruent. sometimes

The diagonals in a rectangle are congruent. Quadrilaterals The diagonals in a rectangle are congruent. always

Quadrilaterals The sum of the measures of the exterior angles of a quadrilateral equal the sum of the measures of the interior angles of a quadrilateral. Always

If the sides of a polygon are equal then the polygon is regular. Quadrilaterals If the sides of a polygon are equal then the polygon is regular. sometimes

A trapezoid is a parallelogram. Quadrilaterals A trapezoid is a parallelogram. never

A trapezoid has one pair of congruent, parallel sides. Quadrilaterals A trapezoid has one pair of congruent, parallel sides. never

A square is both a rhombus and a rectangle. Quadrilaterals A square is both a rhombus and a rectangle. always