Find the measures of complementary angles that satisfy each case. The measure of the first angle is 30 degrees greater than the second angle. What is the measurement of both complementary angles?

1 answer

Let the measure of the first angle be \( x \) degrees and the measure of the second angle be \( y \) degrees. Since the angles are complementary, we have the equation:

\[ x + y = 90 \]

We are also given that the first angle is 30 degrees greater than the second angle:

\[ x = y + 30 \]

Now, we can substitute the expression for \( x \) from the second equation into the first equation:

\[ (y + 30) + y = 90 \]

This simplifies to:

\[ 2y + 30 = 90 \]

Now, we can solve for \( y \):

\[ 2y = 90 - 30 \] \[ 2y = 60 \] \[ y = 30 \]

Now that we have \( y \), we can find \( x \):

\[ x = y + 30 = 30 + 30 = 60 \]

Thus, the measures of the complementary angles are:

  • First angle (x): \( 60 \) degrees
  • Second angle (y): \( 30 \) degrees

In conclusion, the two complementary angles are \( 60 \) degrees and \( 30 \) degrees.