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B 1. Determine whether ∆ABC should be solved using Law of Sines of Law of Cosines. A a=19 63ο b=20 C Law of Cosines Law of Sines 2. Find the missing lengths in the given triangle. (angles to the nearest degree, sides to the nearest hundredth) B A 19 63ο 20 C <A = <B = c = ο ο 3. Determine whether ∆ABC should be solved using Law of Sines of Law of Cosines. B a=10.5 A 72ο b=9 C Law of Cosines Law of Sines 4. Find the measure of angle B. Round to the nearest whole degree. B A degrees C 5. To find x, would you use the law of sines or the law of cosines? law of sines law of cosines 6. Find x and then find angle E. (both to the nearest degree) E F ∡x = ∡E = G *Figure not drawn to scale. |