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

To solve for \( x \), we start by using the information given about the angles. We know that the two adjacent angles \( \angle 1 \) and \( \angle 2 \) add up to \( 160^\circ \):

\[ m∠1 + m∠2 = 160° \]

Substituting the expressions given for the angles:

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

Now, combine the terms:

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

Next, subtract \( 10 \) from both sides:

\[ 5x = 150 \]

Now, divide both sides by \( 5 \):

\[ x = 30 \]

Now we can find the measures of \( m∠1 \) and \( m∠2 \):

For \( m∠1 \):

\[ m∠1 = 3x = 3(30) = 90° \]

For \( m∠2 \):

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

Thus, the measures of the angles are:

\[ m∠1 = 90° \quad \text{and} \quad m∠2 = 70° \]

So the final answers are:

\[ m∠1 = 90° , \quad m∠2 = 70° \]