Construct a truth table for each of these compound propo- sitions. c) p田(pv4)

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two