Find the values of adjacent angles if it is known that one of them is 3 times larger than the other.

Adjacent corners make up a flattened corner. Therefore, the sum of the values of adjacent angles is 180 degrees.
Let one of them be x degrees, then the second is 3x degrees, since their sum is 180 degrees, then we get the equation:
3x + x = 180;
4x = 180;
x = 180: 4;
x = 45.
3x = 3 * 45 = 135.
Answer: 45 degrees, 135 degrees.