Question

which angle number represents the linear pair of ∠txs?

Explanation:

Step1: Identify ∠TXS sides

Sides: XT (from X to T), XS (from X to S).

Step2: Find linear pair condition

Linear pair shares vertex (X), common side, non-common sides are opposite rays (straight line).

Step3: Locate adjacent angle at X

At X, XS and XR are opposite rays (straight line). ∠TXS (w/ side XS) and ∠TXR (w/ side XR) share XT, forming linear pair. ∠TXR is angle 3.

Answer:

3