8 6 study guide and intervention the law of sines and the law of cosines answer key

Solve △ ABC You are given the measures of two sides and the included angle Begin by using the Law of Cosines to determine c c2 = a2 + b2 - 2ab cos C

b sin A = 16 sin 48° ≈ 11 89 Since 11 < 11 89, there is no solution b A = 34°, a = 6, b = 8 Acute B First use the Law of Sines to find 

PERIOD 7-7 Study Guide and Intervention (continued) The Law of Cosines Use the Law of Cosines to Solve Problems You can use the Law of Cosines to

23 fév 2019 · Round side lengths to the nearest tenth and angle measures to the nearest degree 10 a = 9, b = 7, A = 108 SOLUTION: Draw a diagram 

and cotangent ratios are reciprocals of the sine, cosine, and tangent ratios, 4-2 Study Guide and Intervention (continued) Sample answers: 403°, –317° The Law of Cosines can be used to solve an oblique triangle when given the 

d ≈ 28 0 Use a calculator Find x Round to the nearest tenth 1 2 3 4 5 6 The Law of Cosines Another relationship between the sides and angles of any 

Study Guide and Intervention The Law of Sines and Law of Cosines The Law of Sines In any triangle, there is a special relationship between the angles of

Study Guide and Intervention The Law of Sines and the Law of Cosines Solve O S The Law of Sines can be used to solve an oblique triangle when given the 

26 fév 2014 · 48-6 Study Guide and Intervention continued) The Law of Sines Use the Law of Sines to solve Problems You can use the Law of Round your answers to The Law of Cosines Another relationship between the sides and 

triangle is called a trigonometric ratio The three most common ratios are sine, cosine, and tangent, which are abbreviated sin, cos, and tan, respectively sin R =