Statements:
a: If two lines intersect, then vertically opposite angles are equal.
b: If a transversal intersects two other lines, then the sum of two interior angles on same side = 180°.
(a) Both a and b true
(b) a true and b false
(c) a false and b true
(d) Both a and b false
a is true property. b is true only if lines are parallel, but not given. So false.