ISEE Mathematics Achievement Question 214: Answer and Explanation
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Question: 214
9. In the figure shown, if angle 2 measures 45°, what is the measure of angle 4?
- A. 135°
- B. 75°
- C. 45°
- D. 35°
Correct Answer: C
Explanation:
C is correct. When two straight lines intersect as shown, they form opposite vertical angles. Those angles have the same measure, so if angle 2 measures 45°, then angle 4 must also measure 45°.