SAT Math Multiple Choice Question 954: Answer and Explanation
In the figure above,,, andall intersect. What is the value of n?
- A. 30
- B. 40
- C. 50
- D. 60
Correct Answer: B
Category: Additional Topics in Math / Geometry
Strategic Advice: Use your knowledge of angle properties to quickly find the answer. Angles that form a straight line sum to 180°, and vertical angles have equal measures.
Getting to the Answer: The three angles on the left side form a straight line, so. Solving for m gives 40. The angles marked m° and n° are vertical angles, so n = 40 as well. (B) is correct.