Answer:
Step-by-step explanation:
The angle is tangent chord angle.
The tangent chord angle is half the measure the intercepted arc.
The intercepted arc by this angle is:
- 360° - (74° + 86°) = 200°
Find the value of x:
- 4x + 13 = 1/2*200
- 4x + 13 = 100
- 4x = 100 - 13
- 4x = 87
- x = 87/4
- x = 21.75
