Properties of Quadrilaterals

Parallelogram Properties

• • Opposite sides parallel.

• • All angles are right angles.

• • Opposite sides are unequal.

• • Diagonals are perpendicular.

Which quadrilateral(s) have consecutive angles that are supplementary?

• Parallelogram

• Rectangle

• Trapezoid

• Square

Trapezoid Properties

• Only ONE pair of opposite sides are parallel (called bases).

• All sides are equal in length.

• The sum of all angles is 360 degrees.

• Opposite angles are equal.

Which quadrilateral(s) has four right angles?

• Rectangle and Square

• Trapezoid

• Rhombus

• Parallelogram

Which quadrilateral(s) have congruent opposite angles?

• Trapezoid

• Parallelogram

• Kite

• Scalene Triangle

Which quadrilateral(s) have supplementary opposite angles?

• Rectangle, Square, and Isosceles Trapezoid

• Rhombus, Parallelogram, and Kite

• Trapezoid, Rectangle, and Pentagon

• Square, Rectangle, and Triangle

Which quadrilateral(s) has exactly one set of parallel sides

• parallelogram

• rectangle

• trapezoid and isosceles trapezoid

• rhombus

Which quadrilateral has diagonals that are congruent?

• Rectangle

• Rhombus

• Parallelogram

• Kite

Isosceles Trapezoid

• Non-parallel sides (legs) are congruent.

• All angles are right angles.

• The diagonals are perpendicular to each other.

• The bases are of different lengths.

Kite

• Exactly two pairs of consecutive congruent sides.

• All sides are equal in length.

• Opposite angles are equal.

• Diagonals bisect each other at right angles.