(12 points, NO links) In AOPQ, OQ = 38 cm, OP = 29 cm and 20=39º. Find the length of PQ.

a. PQ2=(29)2 + (38)2 + 2(29) (38)cos 39°
b. PQ2=(29)2 - (38)2- 2(29)(38)cos 39°
c. PQ2=(29)2 + (38)2- 2(29)(38)cos 39°
d. PQ2=(29)2 - (38)2 + 2(29)(38)cos 39°

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