6.6 Identifying Parallelograms

A square is a parallelogram with four congruent sides and with four right angles.

• True

• False

What type of lines are shown?

• intersecting lines

• perpendicular lines

• acute angles

• obtuse angles

A rectangle is a quadrilateral with opposite sides congruent, opposite sides parallel and four right angles.

• True

• False

A rhombus is a parallelogram with four congruent sides and one set of parallel sides.

• True

• False

A rectangle always has four right angles.

• True

• False

Quadrilaterals and parallelograms are the same thing.

• True

• False

Look carefully at the symbols to determine the best name for this shape

• trapezoid

• parallelogram

• rectangle

• rhombus

• square

Look carefully at the symbols to determine the best name for this shape

• trapezoid

• parallelogram

• rectangle

• rhombus

• square

Look carefully at the symbols and find all of this shapes possible names.

• quadrilateral

• rhombus

• square

• rectangle

• parallelogram

Answer explanation

Look carefully at the symbols-

Arrows mean opposite sides are parallel.

Lines mean opposite sides are equal (but NOT all sides equal).

Half moons mean opposite angles are equal.

Parallelogram and Quadrilateral

Select all the quadrilateral(s) with opposite angles congruent and opposite sides congruent.

• parallelogram

• rectangle

• rhombus

• trapezoid

• square

Answer explanation

Starting at the bottom of quad man- select all shapes that have the characteristics listed.