For two vertical angles with measures m∠2=(5x+23)° and m∠4=(3x+35)° , what is the measure of each angle?(1 point)

Responses

53°
53 degrees

15.3°15.3 degrees

6°6 degrees

29°29 degrees

1 answer

Vertical angles are equal, so we can set the two angle measures equal to each other:

\[ m∠2 = m∠4 \]

This gives us the equation:

\[ 5x + 23 = 3x + 35 \]

Now, let's solve for \(x\):

  1. Subtract \(3x\) from both sides: \[ 5x - 3x + 23 = 35 \] \[ 2x + 23 = 35 \]

  2. Subtract 23 from both sides: \[ 2x = 35 - 23 \] \[ 2x = 12 \]

  3. Divide by 2: \[ x = 6 \]

Now that we have \(x\), we can substitute it back into either expression to find the measure of the angles. Let's use \(m∠2\):

\[ m∠2 = 5x + 23 = 5(6) + 23 = 30 + 23 = 53° \]

Now let's check \(m∠4\) to ensure they are equal:

\[ m∠4 = 3x + 35 = 3(6) + 35 = 18 + 35 = 53° \]

Thus, both angles measure \(53°\).

The measure of each angle is 53°.