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m11gmse_0605.indd 383
6-5 Solve It!
Which vertices form a square? A rhombus?
A rectangle? Justify your answers.
y B
C
6 A
4
So far you have
learned about
four types of
quadrilaterals.
J
F
G
L
D
2
x
O
2
4 E 6
H
6-5 Lesson Quiz
1. Can you conclude that the parallelogram is a rhombus,
a rectangle, or a square? Explain.
41 41 41 41 2. For what value of x is parallelogram ABCD a rectangle?
A
x
3x
B
9
5
4x
D
16
2x
2
C
3. Do you UNDERSTAND? Given WRST is a parallelogram
and WS > RT , how can you classify WRST ? Explain.
2/14/09 6:59:42 AM
Answers
Solve It!
Lesson Quiz
square: OEFA, because it has
4 rt. ' and 4 > sides; rhombus:
OEDG, because it has 4 > sides
of length 5; rectangle: EHDL,
because it has 4 rt. ' and
opp. sides >
2. 7
1. rhombus; The diagonal
bisects a pair of opposite
angles, so the figure is
a rhombus by Theorem
6-17. Also, by ASA and
the converse of the Isosceles
Triangle Theorem, all four
sides are congruent.
3. Rectangle; WS and RT are
congruent diagonals, and
by Theorem 6-18, WRST is
a rectangle.
Prentice Hall Geometry • Solve It/Lesson Quiz on Transparencies
Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved.
41
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