The sum of the three angles of the parallelogram is 254. Find the angles of the parallelogram.

As you know, the sum of the angles in a quadrilateral is 360 °, and a parallelogram is a quadrilateral, therefore,
To find the fourth corner you need
360 ° -254 ° = 106 °
Since one of the properties of a parallelogram is that its opposite angles are equal, then the second angle will also be 106 °
To find the 3rd and 4th corners, you need
360 ° -2 × 106 ° = 360 ° -212 ° = 148 °
But this is only their sum; to find the angles separately, you need
148 ° ÷ 2 = 74 °.
Answer: 74 °, 74 °, 106 °, 106 °