Question

Solve the triangle if b=5 and B=10 degrees

Answer 1

Assuming b and B are both angles,

Well the angles of a triangle must add up too 180 degrees.
Similarly, three sides must be a^2 + b^2 = c^2 where c is the longest side.

So if they are both angles, 180 - (5+10 aka 15) = 165