Final answer:
a) m∠SRW. The value of m∠SRW can be found using vertical angles.
Step-by-step explanation:
To find the value of m∠SRW using vertical angles, we need to know the relationship between vertical angles. Vertical angles are a pair of non-adjacent angles formed by intersecting lines. They are congruent, which means that they have the same measure. In this case, m∠SRW is equal to the measure of the vertical angle opposite it, which we'll call m∠SRX.
So, m∠SRW = m∠SRX. This means that the answer is a) m∠SRW.