Pre-Calculus Practice Problem 132

# Pre-Calculus Practice Problem 132 - ∠ A =34 o 35’ ∠ B...

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Unit 4, Activity 3, Solving Oblique Triangles with Answers Blackline Masters, Advanced Math-Pre-Calculus Page 130 Comprehensive Curriculum, Revised 2008 Problem # Which geometric postulate applies? SAS, SSS, AAS, ASA, SSA Which law should be used ? Solution 1.a = 30.00 b = 60.00 C=23 o 50’ SAS law of cosines B = 135 o 43’ A = 20 o 27’ c = 34.74 2. b = 23.5 B = 15.0 o C = 18.0 o AAS law of sines A =147 o a = 49.5 c = 28.1 3. a = 8.302 b = 10.40 c = 14.40 SSS law of cosines
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Unformatted text preview: ∠ A =34 o 35’ ∠ B =45 o 19’ ∠ C =100 o 06’ 4. a = 8.00 b = 9.00 ∠ A = 75.0 o SSA If bsinA<a<b there are 2 triangles, therefore 2 solutions. use law of sines Solution1: ∠ B =51 o 20’ ∠ C =86 o 40’ c = 44.8 or Solution 2: ∠ B =128 o 40’ ∠ C=9 o 20’ c = 7.3 5. a = 6.0 ∠ A = 64 o 30’ ∠ C = 56 o 20’ AAS law of sines b = 5.9 c = 6.2 ∠ B =64 o 30’ 6. a = 3.0 b = 9.0 c = 4.0 SSS a + c < b Therefore there is no triangle....
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