Find the measures of the supplementary angles that satisfy each case. The measure of the first angle is 45 degrees more than the measure of the second

1 answer

Let the measure of the second angle be \( x \) degrees. According to the problem, the measure of the first angle is \( 45 \) degrees more than the second angle, so we can express the first angle as \( x + 45 \) degrees.

Since these two angles are supplementary, their measures add up to \( 180 \) degrees. We can set up the following equation:

\[ x + (x + 45) = 180 \]

Simplifying the equation:

\[ 2x + 45 = 180 \]

Subtracting \( 45 \) from both sides:

\[ 2x = 135 \]

Dividing both sides by \( 2 \):

\[ x = 67.5 \]

Now, we can find the measure of the first angle:

\[ x + 45 = 67.5 + 45 = 112.5 \]

Thus, the measures of the supplementary angles are:

  • First angle: \( 112.5 \) degrees
  • Second angle: \( 67.5 \) degrees

So the supplementary angles are \( 112.5 \) degrees and \( 67.5 \) degrees.