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(Part A: Circle only one answer. Each question is 1 point.) (Part B: Show all wo

ID: 2912889 • Letter: #

Question

(Part A: Circle only one answer. Each question is 1 point.) (Part B: Show all work on separate sheets of paper. Points shown for each question). 1. Find the missing angle and the length of its opposite side, for the given triangle 125° 20 a) Angle 30°; length 10.3 c) Angle 25°; length9.21 b) Angle 40 length 15.69 d) Angle15 length 25.8 2. Given A 42°, 22; b-12. Find angle B and length C. b) B 1050, C 10 d) B 121°; c 18.5 a ?) ? 12.45°, ? 6.77 c) B 21.41 c 29.4 3. How many solutions exists for the triangle with the given parameters: d) 3 4. How many solutions exists for the triangle with the given parameters A 76 a 18; b 20 a) 0 d) 3 5. Find angle C for the given triangle

Explanation / Answer

1) 3rd angle = 180 - ( 125 + 15 )

= 40 degrees

finding length of its opposite side

applying law of sines

20/ sin 125 = b / sin 40

b = 20 / sin 125 * sin 40

15.69

option b is correct