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3 years ago

12

Please help! Two triangles can be formed with the given information. Use the Law of Sines to solve the triangles. C = 67°, a = 2

1, c = 20

2 answers:

lys-0071 [83]3 years ago

6 0

(20/Sin 67) = (21/Sin A)
Cross multiply
21Sin67 = 20SinA
Divide by 20
(21Sin67)/20 = SinA

A = Sin^-1 (21Sin67)/20 = 75 degrees

ValentinkaMS [17]3 years ago

3 0

Answer:

A = 75.1°, B = 37.9°, b = 13.3; A = 104.9°, B = 8.1°, b = 3.1

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