SOLUTION: The lengths of the sides of ABC are 9.5, 12.8, and 13.7. (a) To the nearest hundredth of a degree, the measure of the smallest angle in the triangle is .

Question 288700: The lengths of the sides of ABC are 9.5, 12.8, and 13.7.
(a) To the nearest hundredth of a degree, the measure of the smallest angle in the triangle is .
Answer by texttutoring(324) (Show Source): You can put this solution on YOUR website!
What grade is this? Have you seen the Cosine Law before?

The Cosine Law is:

To find the smallest angle, o, we need to use c as the smallest side, 9.5. Plug the numbers in with a=12.8, b=13.7 and c=9.5, then solve for the angle, o.

Rearrange this equation to find:

o=41.84 degrees

If you need any clarifications about steps in this problem, let me know!
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