Question

Ignore the bubbled in answer. I just need a brief explanation with the answer

Answer 1

Note that we can forget about the line QT, so we have the following

From this picture, we can that angles RVS and PVU are formed by lines RU and PS. We can see that angles have a common vertex. So this classifies this two angles as vertical angles, which means that they have the same measure.

Then, angles PVU and RVS have the same measure, that is, 63°.