Use the relastionship between supplementary angles to determine the value of y if x = 125

1 answer

If two angles are supplementary, their sum is equal to 180 degrees.

Let x be one of the supplementary angles, with a value of 125 degrees.

The other angle, y, can be represented as:

y + x = 180

Substituting the given value of x:

y + 125 = 180

Subtracting 125 from both sides of the equation:

y = 180 - 125

y = 55

Therefore, when x = 125, y = 55.