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3 years ago

WILL MARK BRAINLEST PLZZ HELPPP!!!!!!!!

Mathematics

1 answer:

Juliette [100K]3 years ago

6 0

Answer:

b = 18.56

c = 12.75

A = 40°

Step-by-step explanation:

Law of sines: a/sinA = b/sinB= c/sinC

12 / sin (180°-97°-43°) = b/sin97° = c/sin43°

12/sin40° = 12/0.64 = 18.75

b = 18.75 x sin97° = 18.75 x 0.99 = 18.56

c = 18.75 x sin 43° = 18.75 x 0.68 = 12.75

check: 12/sin40° = 12/0.64 = 18.75

b: 18.56 sin97°=0.99 18.56/0.99 = 18.747 ≈ 18.75

c: 12.75 sin43° = 0.68 12.75/0.68 = 18.75

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