
	1.	Write a statement and reason for step 3. Given: ABCD is a rectangle with diagonals and Prove:


		A.	is a right triangle; Definition of right triangle
		B.	; Opposite sides of a parallelogram are congruent
		C.	is a right angle; Definition of a rectangle
		D.	; Opposite sides of a parallelogram are parallel
		Hint

	2.	Complete step 4 of the proof. Given: ABCD is a rectangle with diagonals and Prove:


		A.	and are complimentary angles; Definition of complimentary angles
		B.	; Definition of midpoint
		C.	and are right angles; Definition of a rectangle
		D.	; Opposite sides of a parallelogram are parallel
		Hint

	3.	What is the best statement for step 5? Given: ABCD is a rectangle with diagonals and Prove:


		A.	; All right angles are congruent
		B.	is a right triangle; Definition of a right triangle
		C.	; Opposite sides of a parallelogram are parallel
		D.	; Definition of midpoint
		Hint

	4.	Based upon steps 1-5, what is the best conclusion you can make for step 6? . Given: ABCD is a rectangle with diagonals and Prove:


		A.	; AAS
		B.	; SAS
		C.	and are right triangles; Definition of a right triangle
		D.	and are right triangles; Definition of a right triangle
		Hint

	5.	If the seventh and final statement of the proof is , what reason can you give for making that statement? Given: ABCD is a rectangle with diagonals and Prove:

		A.	CPCTC
		B.	Hypotenuses of right triangles are congruent
		C.	SSS
		D.	Definition of diagonals of parallelograms
		Hint