Given:
Angle STV is a straight angle. The measure of angle WTV is 65°. The measure of angle STW is x°.
To find:
The value of x.
Solution:
Angle STV is a straight angle. So, the measure of angle STV is 180 degrees.


The measure of angle WTV is 65°. The measure of angle STW is x°.




Therefore, the value of x is 115.