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

29°
29 degrees

15.3°
15.3 degrees


6 degrees

53°

1 answer

Vertical angles are equal, so we can set the expressions for the angles equal to each other:

\[ m∠2 = m∠4 \]

This gives us the equation:

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

Now, we can 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, we can substitute \( x \) back into either angle measure to find the measure of the angles:

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

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

So, both angles measure \( 53° \).

The measure of each angle is 53°.