Answer:
≈93
Explanation:
S.A.S.→Law of Cosines
a^2=b^2+c^2-2bc\cos A
m^2 = 81^2+41^2-2(81)(41)\cos 93
Plug in values.
m^2 = 6561+1681-2(81)(41)(-0.052336)
Square and find cosine.
m^2 = 6561+1681+347.61542
Multiply.
m^2 = 8589.61542
Add.
√8589.61542≈92.68≈93