Answer:
The value of x is 20°
Explanation:
Consider the provided information.
2 intersecting lines are shown. A line with points T, R, W intersects a line with points S, R, V at point R.
Clockwise, from the top, the angles are blank, (3 x) degrees, blank, (x + 40) degrees.
The required figure is shown below:
Four angles are formed when two straight lines overlap each other. The pair of angles are called vertically opposite angles on the opposite sides of the point of intersection.
Vertically opposite angles are always equal.
Thus ∠TRV=∠SRW



Hence, the value of x is 20°