So,
First of all, remember that:
- The sum of all the internal angles of a parallelogram is 360°.
- The opposite angles inside of a parallelogram are equal.
In this question, we have that:
The first thing we should notice is that the angle M measures also 125° since it is opposite to the angle P, whose measure is equal.
We can also say that the measures of the angles L and Q are equal.
Now, we could use the fact that the sum of all these internal angles is 360°:
So, the measure of angle L is 55° and the measure of angle M is 125°.