When 2 straight lines intersect, 1 of the corners is 54 degrees. Find the obtuse angles formed.

To find the angles of a parallelogram, we will first of all remember what angles are in the parallelogram.

There are two types of angles in a parallelogram:

1. opposite – these angles have the same degree measure;

2. angles adjacent to one of the sides – their sum is 180 °.

In the condition, we are talking precisely about the sides adjacent to one side.

Let us denote by x ° the corners adjacent to the corners of 54 °.

Let’s make a linear equation:

x + 54 = 180;

We are looking for a variable as an unknown term:

x = 180 – 54;

x = 126 ° pair of obtuse corners and 54 ° pair of acute angles.