Two adjacent angles, <1 and <2, form a resulting angle with measure 135. If m<1 = ( 2x ) and m<2 = ( 2x + 7 ) , wut r da two unknown angle measures?

m<1 = ___, m<2 = ___

1 answer

To determine the measures of the two angles, we first set up an equation based on the information given. We know that:

  • \( m\angle 1 = 2x \)
  • \( m\angle 2 = 2x + 7 \)

Since angles \( \angle 1 \) and \( \angle 2 \) are adjacent and together form a resulting angle of 135 degrees, we can write the equation:

\[ m\angle 1 + m\angle 2 = 135 \]

Substituting the expressions for \( m\angle 1 \) and \( m\angle 2 \) into this equation:

\[ 2x + (2x + 7) = 135 \]

Now, simplifying the equation:

\[ 2x + 2x + 7 = 135 \]

\[ 4x + 7 = 135 \]

Next, we subtract 7 from both sides:

\[ 4x = 128 \]

Now, divide by 4:

\[ x = 32 \]

Now that we have the value of \( x \), we can find the measures of the angles:

\[ m\angle 1 = 2x = 2(32) = 64 \]

\[ m\angle 2 = 2x + 7 = 2(32) + 7 = 64 + 7 = 71 \]

Thus, the unknown angle measures are:

\[ m\angle 1 = 64, \quad m\angle 2 = 71 \]

Final answers:

  • \( m\angle 1 = 64 \)
  • \( m\angle 2 = 71 \)