Chapter 13, Trigonometric Ratios and Functions - 13.6 Apply the Law of Cosines - 13.6 Exercises - Skill Practice - Page 893: 37

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Since the sum of the triangle is $180^\circ$, we obtain: $$A+B+C=180^\circ\\A=180^\circ-A-B\\A=180^\circ -98^\circ -37^\circ\\A=45^\circ$$ Use law of sines to find: $$\frac{a}{\sin A}=\frac{b}{\sin B}\\ b=\frac{a}{\sin A}\times \sin B\\b\approx 25.2^\circ$$ $$\frac{c}{\sin C}=\frac{a}{\sin A}\\c=\frac{a}{\sin A}\times \sin C\\c\approx15.3^\circ$$