deasiaalston15
deasiaalston15 deasiaalston15
  • 26-05-2020
  • Mathematics
contestada

What is the measure of angle BAC? Round to the nearest whole degree.

Respuesta :

animefan07
animefan07 animefan07
  • 26-05-2020

The answer would be 70 degrees.

In order to find this answer, we must first look at the cos value of an angle. The unknown angle here gives us an adjacent side of 3.4 and a hypotenuse of 10. Thus, we can use the following with cos.

Cos(A) = 3.4/10 or Cos(A) = .34

As a result, we can then use the arccos function to find the answer.

acrcos(.34) = A

70.12 = A

Then when we round, we'd get 70.

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