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94 › McGraw Hill 500 GRE® Math Questions
2x + 70°
3x + 50°
t
n
m
 315. In the preceding figure, lines m and n are parallel and cut by the transversal t. 
What is the measure of angle θ ?
 (A) 20°
 (B) 40°
 (C) 60°
 (D) 110°
 (E) 120°
 316. In triangle ABC, sides AB and AC are congruent. If the measure of angle 
C is 36°, what is the measure of angle A?
 (A) 28°
 (B) 36°
 (C) 72°
 (D) 104°
 (E) 108°
A
Q R
C
B
P
 317. In the preceding figure, ∠ ≅ ∠AQP AQB and ∠ ≅ ∠BQC CQR. What is the 
measure of ∠AQC ?
 (A) 100°
 (B) 90°
 (C) 80°
 (D) 75°
 (E) 70°
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