Solve the triangle Round the lengths of sides to the nearest

Solve the triangle. Round the lengths of sides to the nearest tenth and angles to the nearest degree. C almostequalto (Do not round until the final answer. Then round to the nearest degree as needed.) c almostequalto (Do not round until the final answer. Then round to the nearest tenth as needed.) B almostequalto (Do not round until the final answer. Then round to the nearest degree as needed.) A almostequalto (Do not round until the final answer. Then round to the nearest degree as needed.)

Solution

a=13, b=9,C=180-15-34=131 degree

c²=a²+b²-2ab cos C

c²=169+81 -234cos 131

c²=250-234 cos 131

c=20.1

sinC/c=sinA/a

sin131/20.1=sinA/13

A=29 degree

B=180-A-C=20 degree