Four angles are formed by the intersection of the diagonals of this quadrilateral. Which statement is NOT true?


A) ∠1 and ∠2 are adjacent.


B) m ∠2 = 180° – 120°


C) m ∠1 = 120° because ∠1 and the 120° angle are vertical angles.


D) m ∠1 = m ∠2