5 b 5 6 10 c 12 a 5 8 A a 13 b Classroom Exercises - flip@mrflip.com
5 b 5 6 10 c 12 a 5 8 A a 13 b Classroom Exercises - flip@mrflip.com
5 b 5 6 10 c 12 a 5 8 A a 13 b Classroom Exercises - flip@mrflip.com
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<strong>Classroom</strong> <strong>Exercises</strong>Law of Cosines and Law of Sines:2 2 2a = b + c - 2bc cos(A)2 2 2b = a + c - 2ac cos(B)2 2 2c = a + b - 2ab cos(C)sin(A)a=sin(B)b=sin(C)cState which scenario (AAS, SSA, SAS, SSS) is applicable, then find theappropriate variable or variables.c536.6º60º117ºb<strong>12</strong><strong>10</strong>a35.5º(find both a and c)34.3º6A<strong>13</strong>ba5860º531º. C=30º, a = 8, b = 9 c = ? . B=14º, A=14º , c = 15. a = ?. C=30º, a = 8, b = 9 A = ? . B=14º, A=14º, c = 15. b = ?. A=30º, B=50º, c = 9 C = ? . a=7, b=2, c=1. C = ?Draw a diagram and solve.11) A telephone pole has two guy wires, attached to the pole at the sameheight. One wire is 40ft long, and makes an angle to the ground of 43º. Theother wire is 52ft long. What angle does it make to the ground?
Homework <strong>Exercises</strong>State which scenario (AAS, SSA, SAS, SSS) is applicable, then find theappropriate variable or variables.5a38ºa559º11.652 c<strong>13</strong>531º42.3º 42.3º11C. C=45º, a = 5, b = <strong>10</strong> c = ? . c = <strong>12</strong>, B=45º, A=30º. b = ?. C=45º, a = 5, c = <strong>10</strong> A = ? . a=7, b=3, c=2. C = ?Draw a diagram and solve.. An isosceles triangle has a vertex angle of 36º and a base (non-congruentside) that is <strong>12</strong> in. long. What are the lengths of the congruent sides?On page 269-270, please do problems 18, 21, 24, 27
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