Two adjacent angles from resulting angle with measures 160. m <1 = 3x and m <2 = ( 2x + 10 ). Solve for x What are the two unknown angles' measurements?

m<1 = _, m <2 = _

1 answer

To find the value of \( x \) and the measures of the two angles, we start with the given equations for the angles:

  • \( m \angle 1 = 3x \)
  • \( m \angle 2 = 2x + 10 \)

We know that the sum of the measures of the two angles is 160 degrees, so we can set up the equation:

\[ m \angle 1 + m \angle 2 = 160 \]

Substituting the expressions for the angles into the equation gives us:

\[ 3x + (2x + 10) = 160 \]

Now, combine like terms:

\[ 3x + 2x + 10 = 160 \] \[ 5x + 10 = 160 \]

Next, subtract 10 from both sides:

\[ 5x = 150 \]

Now, divide by 5:

\[ x = 30 \]

Now that we have \( x \), we can find the measures of the two angles.

For \( m \angle 1 \):

\[ m \angle 1 = 3x = 3(30) = 90 \]

For \( m \angle 2 \):

\[ m \angle 2 = 2x + 10 = 2(30) + 10 = 60 + 10 = 70 \]

Thus, the measures of the two angles are:

\[ m \angle 1 = 90^\circ, \quad m \angle 2 = 70^\circ \]

Final answer:

  • \( m \angle 1 = 90^\circ \)
  • \( m \angle 2 = 70^\circ \)