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Math 13900
Exam 3 Review Problems
Spring 2010
1
Note: This is NOT a practice exam.
It is a collection of problems to help you review some of the
material for the exam and to practice some kinds of problems.
This collection is not necessarily
exhaustive; you should expect some problems on the exam to look different from these problems.
Section 11.1
Textbook p. 802 # 3, 4
1. Use a compass and protractor to construct the triangle
STP
with the following characteristics:
ST
=
1.25 inch,
SP
= 2 inches, and angle
S
= 40°.
What is the measure of angle
T
?
2. Using a straightedge, ruler, compass, and protractor as necessary, show why it is impossible to
construct a triangle with sides of length 1.5 inches, 2.75 inches, and 5 inches.
3. Carefully construct triangle
DEF
with
DE
= 4 cm,
EF
= 6 cm, and angle
DEF
= 45º.
Measure and
record on your sketch the length of the third side and the measure of the other two angles.
4. Carefully construct triangle
JPS
with
JP
= 3 inches, angle
SJP
= 40º, and angle
JPS
= 75º.
Measure
and record on your sketch the length of the other two sides (rounded to the nearest eighthinch).
5. TrueFalse.
A statement should be marked “false” if it is never true or if it is not necessarily true.
If
a statement is only sometimes true, mark it as “false.”
Explain briefly why any true statements are
true, and explain briefly why any false statements are false or give a counter example.
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 Spring '09
 Math

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