SOLUTION: I have a problem with a question that tells me to solve for triangle ABC and it gives me the measurements B=12 degrees and a= 4. I dont know how to solve it. Can u please help me

Question 77606This question is from textbook
: I have a problem with a question that tells me to solve for triangle ABC and it gives me the measurements B=12 degrees and a= 4. I dont know how to solve it. Can u please help me This question is from textbook

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
I have a problem with a question that tells me to solve for triangle ABC and it gives me the measurements B=12 degrees and a= 4. I don't know how to solve it. Can u please help me
:
This can be solved if ABC is a right triangle, if it is not, another angle or side
is required to solve it:
Find the side opposite 12 degrees using the tangent:
tan(12) = b/4
.212556 = b
b = .85
:
Find the hypotenuse using the cosine of 12 degrees
cos(12) = 4/h
.97184 = 4/h
h = 4.089
:
You can find the third angle 180 - 90 - 12 = 78

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