The Law of Cosines Solve the triangle with the following information: A = 120 o,b=9, c=5  Solve for Side a  a 2 =b 2 + c 2 -2*b*c*cosA  a 2= 9 2 +
{"Image DocumentName": "The Law of Cosines Solve the triangle with the following information:", "Image ImageDescription": "A = 120o,b=9, c=5. Solve for Side a. a2=b2 + c2 -2 b c cosA. a2= \u2013 2 9 5 cos(120o) a2= a=12.3. Now use Law of Sines to find <B = 9. Sin120o sinB. B=arcsin (9 sin120o) B= 39.3o. C= 180o \u2013 120o-39.3o. C=20.7o.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}