The value of the angle m∠4 is 117°
Sum of angle on a straight line
The sum of angle on a straight line is equals to 180 degrees. Therefore,
m∠1 + m∠4 = 180°
m∠1 = 63°
Therefore,
63 + m∠4 = 180
subtract 63 from both sides
m∠4 + 63 - 63 = 180 - 63
m∠4 = 117
m∠4 = 117°
learn more on angle on a straight line here: https://brainly.com/question/19267336
