How do you solve the triangle given A=124, a=1, b=2?

1 Answer
Jun 3, 2017

No solution!

Explanation:

Assuming you need to use the Law of Sines to determine the answer, you are being asked to find the angle #B#, its opposite side #b#, the angle #C# and its opposite side #c#. The picture and formula for the Law of Sines is

patrickJMT YouTube channel

Plugging in the givens, we have

#1/sin(124)=2/sin(B)#

Cross multiplying gets rid of the fractions.

#sin(B)=2xxsin(124)#

Using radians, we get

#sin(B)~~-1.99#

And using degrees, we get

#sin(B)~~1.66#

Unfortunately, neither of these answers is intelligible or coherent, because by definition, the #sin(B)# must be between #-1# and #1#, that is:

#-1<=sin(B)<=1#