SOLUTION: please answer my question.. in a triangle ABC is known that the large angle A is 30 degrees and angle B is 60 degrees. If a + b = 6 then the length of the side b is ... thanks y

Algebra ->  Points-lines-and-rays -> SOLUTION: please answer my question.. in a triangle ABC is known that the large angle A is 30 degrees and angle B is 60 degrees. If a + b = 6 then the length of the side b is ... thanks y      Log On


   



Question 984003: please answer my question..
in a triangle ABC is known that the large angle A is 30 degrees and angle B is 60 degrees. If a + b = 6 then the length of the side b is ...
thanks you..

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
in a triangle ABC is known that the large angle A is 30 degrees and angle B is 60 degrees. If a + b = 6 then the length of the side b is ...
--------------
a + b = 6
a = b*tan(30)
-----
b*tan(30) + b = 6
b = 6/(tan(30) + 1)
b =~ 3.80385