SAT Math Multiple Choice Practice Question 355: Answer and Explanation

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Question: 355

3.

In the figure above, lines l, m, and n intersect in a single point. What is the value of w + x?

A. 40
B. 70
C. 90
D. 130
E. 140

Correct Answer: D

Explanation:

D A linear angle measures 180°. Write an equation:

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