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Please show your work I don't know what to do it's hard
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3 votes
Please show your work I don't know what to do it's hard

Please show your work I don't know what to do it's hard-example-1
User Srdjan Vukmirica
by
6.4k points

2 Answers

3 votes
That's basic trigonometry
Tangent 57 degrees = AC / 9
AC = Tangent 57 degrees * 9
AC = 1.5399 * 9
AC = 13.8591 Rounding to one tenth =
13.9

User Prathamesh Sonpatki
by
6.0k points
3 votes
Soh Cah Toa! :)

Sin = Opposite/Hypotenuse
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent
You are looking for AC, which is opposite. And you are given Adjacent.

tan(57)*9 = length of B which is 13.85 units
User Teun
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6.0k points
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