SOLUTION: My daughter has asked my help with her math and it has been a very long time since I have worked this kind of problem (below). Please help me with the proper formula to use in show

Click here to see ALL problems on Triangles

Question 564633: My daughter has asked my help with her math and it has been a very long time since I have worked this kind of problem (below). Please help me with the proper formula to use in showing her how to work this type of problem. Thank you.
ABC is a 30-60-90 triangle with a right angle at B. Use the measure of the side given to find the measure of the indicated side.
BC= 20, find AB
Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website!
BC is a 30-60-90 triangle with a right angle at B. Use the measure of the side given to find the measure of the indicated side.
BC= 20, find AB
:
We can use the tangent of 60 degrees to find side AB
That is: tan(60) =
tan(60) =
1.732 =
AB = 1.732 * 20
AB = 34.64