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kipiarov [429]
3 years ago
13

Calculate the angle BAC

Mathematics
1 answer:
iren2701 [21]3 years ago
4 0

Answer:

Sine Formula or Sine Rule :

BC / sinA = AC / sinB

60 / sinA = 84.95 / sin(115°)

60 / sinA = 84.95 / 0.91

60 / sinA = 93.7

sinA = 60 / 93.7

sinA = 0.64

A = arc(sin0.64)

A = 39°48'30"

A ≈ 40°

Hence, the value of angle BAC is <u>40°</u>

  • <u>40°</u> is the right answer.
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