Parallelogram and Trapezoids

Which statement is always true for parallelograms?

• All sides have the same length

• All angles have the same measure

• Opposite sides are equal in length

• Opposite angles have different measures

Samantha states that a parallelogram is always a rhombus. Is she correct?

• Yes, because a parallelogram has opposite angles that are equal in size.

• Yes, because a parallelogram has opposite sides that are equal in length.

• No, because a parallelogram does not have opposite sides that are equal.

• No, because a parallelogram does not always have 4 equal sides.

Into which category can a trapezoid be placed?

• parallelogram

• quadrilateral

• rectangle

• rhombus

All quadrilaterals have four sides. Trapezoids are quadrilaterals, so all trapezoids have...

• four sides

• four right angles

• four acute angles

• two pairs of parallel sides

A trapezoid is a quadrilateral with exactly one pair of _____ sides.

• parallel

• congruent

• perpendicular

• skew

Which statement is true?

• A rhombus is never a square.

• A rhombus is always a square.

• A rhombus is never a rectangle.

• A rhombus is always a parallelogram.

Which statement is true for all parallelograms and for all trapezoids?

• All parallelograms and trapezoids have no lines of symmetry

• All parallelograms and trapezoids have at least one pair of parallel sides.

• All parallelograms and trapezoids have only one obtuse angle.

• All parallelograms and trapezoids have diagonals that intersect each other at right angles.

Which quadrilateral is NOT always a parallelogram?

• square

• rhombus

• rectangle

• trapezoid