Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Two lines PQ and RS intersect each other at O. If POR: ROQ = 5:4,
then POS is
(a) 50°
(b) 40°
(c) 100°
(d) 80°