In the figure shown, point $T$ lies on segment $SW$, and segment $TU$…

Question

Prompt

In the figure shown, point

T

lies on segment

S W

, and segment

T U

is parallel to segment

V W

. The measure of angle

V

2 6^{\circ}

, and the measure of angle

S T U

7 4^{\circ}

. What is the value of

p - r