End Of Course Geometry Practice Test With Answers - North Thurston Public Schools Page 12
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30Day 11
The rhombus QRST is made of two congruent triangles. Given m
QRS = 34° determine the measure of
31.
S.
Rhombus means 4 equal sides, so triangle TSR
R
Q
What is the measure of
S?
mush be isosceles. Diagonal TR bisects angle QRS,
so angle TRS measures 17°.
0 A. 56°
Since
,
(both angles are
0 B. 73°
17°)
0 C. 112°
0 D. 146°
S
T
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Determine whether the conjecture is true or false. Give a counterexample for a false conjecture.
32.
Given: points A, B, C, and D
Conjecture: A, B, C, and D are coplanar
True or false?
False
Coplanar means all fitting on the same plane (imagine an endless sheet of paper). Any 4 points do not
necessarily have to be in the same plane. Consider the 4 points that make up the vertices of a cube----these 4
points do not all lie in the same plane.
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1)
Identify the congruent triangles in the diagram and write a congruence statement.
33.
M
L
S
K
N
0 A. Δ LSM
Δ KSN
Although Choices B, C, and D all name the same two triangles, the
0 B. Δ LSK
Δ MSN
order in choices C and D are wrong. Corresponding sides must match
0 C. Δ LKS
Δ MSN
up in naming congruent triangles (
so the LS in naming
0 D. Δ LSK
Δ NSM
∆LSK must be in the same position as the MS in naming ∆MSN)
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1)
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