Angles Polygons and Properties of Parallelograms

Which of the following properties is true about parallelograms?

• Base angles are congruent.

• Diagonals are congruent.

• Opposite sides are parallel.

What do a rhombus and a rectangle have in common?

• they are both parallelograms

• they always have four right angles

• they are not polygons

• they have five sides

The diagonals of a parallelogram

• are always congruent

• bisect each other

• are never congruent

• parallel

Name that shape.

• quadrilateral

• quadrilateral, parallelogram

• quadrilateral, rectangle

• quadrilateral, rhombus

A _______________ is a quadrilateral with two sets of parallel sides.

• trapezoid

• parallelogram

• kite

• triangle

Name that shape.

• quadrilateral, rectangle

• quadrilateral, rectangle, square

• quadrilateral, parallelogram, rectangle

• quadrilateral, parallelogram, rectangle, square

Name that shape. 

• square

• square
  rhombus

• quadrilateral
  parallelogram
  rhombus

• quadrilateral
  parallelogram
  square

Name that shape.

• quadrilateral, rectangle

• quadrilateral, rectangle, square

• quadrilateral, parallelogram, rectangle

• quadrilateral, parallelogram, rectangle, square

Which property alone can classify a polygon as a parallelogram?

• Diagonals bisect.

• At least one set of opposite sides are parallel.

• The polygon contains at least one right angle.

• The polygon is regular.

Which property is true of a parallelogram?

• Opposite angles are congruent.

• Opposite angles are supplementary.

• All parallelograms are regular polygons.

• All sides are congruent.