Question

I don’t get it (the first drop down menu is cannot orCan)

Answer 1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data:

diagram

trapezoid PQRS

Step 02:

angles:

We must analyze the diagram to find the solution.

adjacent angles are supplementary:

65° + 115° = 180°

That is the solution.