Answer:
=48.0
Step-by-step explanation:
In this problem we can use the cosine formula to find b.
b²=a²+c²-2acCosB
Where a, b and c are the sides of the triangle.
Substituting with the values from the question gives:
b²=28²+28²-2×38×28×Cos 92
b²=2302.26
b=√2302.26
=47.98
The side b=48.0 to the nearest tenth.
