Find the perimeter of a rhombus with diagonals 6 and 18.

In rhombus ABCD, AB=(8x - 11) and BC=(3x + 49). Find the perimeter.

An equilateral quadrilateral must be a _____.

		rectangle
		isosceles trapezoid
		square
		rhombus

In rhombus ABCD, the bisectors of B and C must be ______.

		parallel
		congruent
		supplements
		perpendicular

Given a quadrilateral ABCD, find the midpoint of each side. The midpoints of , , , and are E, F, G, and H respectively. What type of quadrilateral must EFGH be?

		a rhombus
		a rectangle
		a parallelogram
		an isosceles trapezoid

Which of the following statements is NOT true?

		A square is a rhombus with congruent diagonals.
		A square is a regular quadrilateral.
		A rhombus is an equiangular parallelogram.
		A quadrilateral is a rectangle if and only if all angles are congruent.

In quadrilateral ABCD, and . ABCD must be a ______.

		trapezoid
		rectangle
		parallelogram
		rhombus

The diagonals of a ______ are perpendicular bisectors of each other.

		rectangle
		trapezoid
		rhombus
		parallelogram

Which of the following is NOT true?

		A rectangle is a parallelogram.
		A rectangle is a rhombus.
		A square is a rhombus.
		A square is a rectangle.

Which of the following is NOT a property of a rectangle?

		Diagonals bisect its angles.
		All angles are right angles.
		Opposite sides are congruent.
		Diagonals bisect each other.