Two 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

Since angle ∠1 and angle ∠2 are adjacent angles that form a resulting angle of 160°, we can set up the equation:

\[ m∠1 + m∠2 = 160° \]

Substituting the expressions for the angles into the equation:

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

Simplifying the left side:

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

Combining like terms:

\[ 5x + 10 = 160 \]

Next, we can isolate \(x\) by subtracting 10 from both sides:

\[ 5x = 150 \]

Now, divide both sides by 5:

\[ x = 30 \]

Now that we have the value of \(x\), we can find the measures of angles ∠1 and ∠2.

Calculating \(m∠1\):

\[ m∠1 = 3x = 3(30) = 90° \]

Calculating \(m∠2\):

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

Thus, the measures of the two angles are:

\[ m∠1 = 90°, \quad m∠2 = 70° \]

To summarize:

  • \(m∠1 = 90°\)
  • \(m∠2 = 70°\)