Q12 of 113 Page 128

If angle P and angle Q are supplementary and the measure of angle P is 60°, then the measure of angle Q is

Sum of two angles P and Q when they are supplementary is 180^°

∠P + ∠Q = 180^°

⇒ ∠Q = 180^°-60^°

⇒ ∠Q = 120^°

In Fig. 5.11, if AB || CD, ∠APQ = 50° and ∠PRD = 130°, then ∠QPR is

In Fig. 5.12, lines l and m intersect each other at a point. Which of the following is false?

In Fig. 5.13, POR is a line. The value of a is

In Fig. 5.14, POQ is a line. If x = 30°, then ∠QOR is