Options:
A.
B.
C.
D.
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Earlier discussion
2 older comments kept for context.
Edet Archibong Edet
From the diagram, <POR is 110°, hence the correct anwser is option B, 20°
Oluwaseun Adeyemi
< PRO = \(180^{\circ} - (100 + 50)\)
= \(180 - 150 = 30^{\circ}\)