If ∠A = 2x and ∠B = 4x such that ∠A and ∠B are supplementary, then the value of x is:
(a) What are the three conditions that must be satisfied for two angles to be adjacent? [3 MARKS] (b) In the given figure, \(\angle 1\) and \(\angle 2\) are supplementary angles. If \(\angle 1\) decreases, then \(\angle 2\) will _______ so that both the angles are still supplementary.