Posted by **sally** on Monday, April 12, 2010 at 7:11pm.

The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P.

(a) Find the area of triangle PQR.

(b) Find the length of the projection of segment PQ onto segment PR.

(c) Find the length of segment QR.

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