A triangle has sides A, B, and C. The angle between sides A and B is #(7pi)/12#. If side C has a length of #2 # and the angle between sides B and C is #pi/12#, what is the length of side A?

Answer 1

Length of side A is #0.54 (2dp)# unit

The angle between sides A and B is #/_C = (7 pi)/12 =105^0# The angle between sides B and C is #/_A = pi/12 =15^0# #C=2# (given) .Applying sine law #A/sinA=C/sinC# we get #A= 2*(sin15/sin105) = 0.54 (2 dp)# unit [Ans]

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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