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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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You can use a sheet of lined notebook paper to divide a segment into a number of congruent parts. Here a piece of cardboard with edge is placed so that is separated into five congruent parts. Explain why it works.
In Exercises 5-10 quad. PQRS is a parallelogram. Find the values of a, b, x and y.
Draw and label a diagram. List what is given and what is to be proved. Then write a two-column proof of the theorem.
Theorem 5-4.
The quadrilaterals numbered 1, 2, 3, 4, and 5 are parallelograms. If you wanted to show that quadrilateral 6 is also a parallelogram, which of the five methods listed on page 172 would be easiest to use?
M, N and T are the midpoints of the sides of .
State the theorem suggested by Exercise 6.
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