Question

Angle AOC and angle BOD are vertical angles. If m∠AOC = (4x + 40)° and m∠BOD = 120°, which equation could be used to solve for x? A. X + 40° = 120° B. (4x + 40)° = 120° C. 4x + 120° = 40° D. (4x)° = 120°

Answer 1

B

Explanation:

This is the equation because they are vertical angles which means they are equal to each other.