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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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A little confused....
Here is the law of cosines:
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try to first find a since you are been given angle A
We'll say side c = 15.8 and side b = 7.4 and Angle A = 54 degrees We'll call the side we need to find is side a
From the Law of cosines, we see that a^2 = b^2 + c^2 -(2bc * cos(A)) a^2 = 7.4^2 + 15.8^2 -(2*7.4*15.8 * 0.58779) a^2 = 54.6 + 249.64 -137.4488136 a^2 = 166.9511864 a = square root (166.9511864) a = 12.9209591904
To find another angle, let's use the Law of Sines
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So we know side a / sine (A) = side b / sine (B) Therefore, sine (B) = (sine (A) * side b) / side a sine (B) = sine (54) * 7.4 / 12.9209591904 sine (B) = 0.80902 * 0.5727128993 sine (B) = 0.4633361898 Angle B = arc sine of Angle B Angle B = 27.603 Degrees We know angle A= 54 and angle B = 27.603 We also know that a triangle contains 180 degrees, so Angle (C) = 180 -54 - 27.603 Angle (C) = 98.397 degrees

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