Chapter 5: Q. 7 (page 199)
Complete the following statement with the word always, sometimes, or never.
The diagonals of a rectangle are ___ congruent.
Short Answer
The diagonals of a rectangle are alwayscongruent.
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Chapter 5: Q. 7 (page 199)
Complete the following statement with the word always, sometimes, or never.
The diagonals of a rectangle are ___ congruent.
The diagonals of a rectangle are alwayscongruent.
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Give the reason for each step in the following proof of theorem 5-6
Given:
Prove: ABCD is a parallelogram.

Proof:

is a parallelogram. Complete.

If and then and ,, and the perimeter of
State the principal definition or theorem that enables you to deduce, from the information given, that quadrilateral SACK is a parallelogram.

Each figure in Exercises 19-24 is a parallelogram with its diagonals drawn. Find the values of x and y.

Study the markings on each figure and decide whether ABCD must be a parallelogram. If the answer is yes, state the definition or theorem that applies.

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