# SAT Math Multiple Choice Practice Question 229: Answer and Explanation

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**Question: 229**

**9.**

In the diagram above, if ? || *m*, which of the following is equivalent to ?

A.

B.

C.

D.

E.

**Correct Answer:** B

**Explanation:**

**B** You might simplify this problem by plugging in possible values for the angle measures, remembering the parallel lines theorem. Your diagram might look like this:

This example shows that , and the only other sum among the choices that equals 360° is (B).