Asked by Shannon
Law of Cosines
a=4.7
b=3.2
c=5.2
Find B
a=4.7
b=3.2
c=5.2
Find B
Answers
Answered by
Steve
b^2 = a^2+c^2-2ac cosB
So, plug in your numbers and solve for cos B
Then B is cos^-1 of that number.
So, plug in your numbers and solve for cos B
Then B is cos^-1 of that number.
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