wo adjacent angles form a resulting angle with measure 160°. m∠1=3x° and m∠2=(2x+10) °. Solve for x. What are the two unknown angles’ measurements? (1 point) m∠1= °, m∠2=

1 answer

To solve for \( x \) in the problem, we start with the information given about the angles. We know that the sum of the adjacent angles \( m∠1 \) and \( m∠2 \) equals the resulting angle of 160°.

We have:

  1. \( m∠1 = 3x \)
  2. \( m∠2 = 2x + 10 \)

The equation can be set up as follows:

\[ m∠1 + m∠2 = 160° \]

Substituting in the expressions for \( m∠1 \) and \( m∠2 \):

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

Now, we combine like terms:

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

This simplifies to:

\[ 5x + 10 = 160 \]

Next, we subtract 10 from both sides:

\[ 5x = 150 \]

Now, we divide by 5 to solve for \( x \):

\[ x = 30 \]

Now that we have \( x \), we can find \( m∠1 \) and \( m∠2 \):

  1. For \( m∠1 \):

\[ m∠1 = 3x = 3(30) = 90° \]

  1. For \( m∠2 \):

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

Thus, the measurements of the two angles are:

  • \( m∠1 = 90° \)
  • \( m∠2 = 70° \)

To summarize:

\[ m∠1 = 90°, \quad m∠2 = 70° \]