SOLUTION: Angles ABC are part of a triangle. I solved angle B and got 60. Angle B = 60 Angle A 40 Angle C = 80 side c = 9 side a = unknown side b = unknown Triangle image: http

Algebra ->  Triangles -> SOLUTION: Angles ABC are part of a triangle. I solved angle B and got 60. Angle B = 60 Angle A 40 Angle C = 80 side c = 9 side a = unknown side b = unknown Triangle image: http      Log On


   



Question 1112967: Angles ABC are part of a triangle. I solved angle B and got 60.
Angle B = 60
Angle A 40
Angle C = 80
side c = 9
side a = unknown
side b = unknown
Triangle image: https://i.imgur.com/xlLFALV.png
What is the solution to side a and b?

Found 2 solutions by solver91311, ikleyn:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Use the Law of Sines:









The rest is just arithmetic on your calculator.

John

My calculator said it, I believe it, that settles it


Answer by ikleyn(52864) About Me  (Show Source):
You can put this solution on YOUR website!
.
On law of sine see the lessons
    - Law of sines - the Geometric Proof
    - Solve triangles using Law of Sines
in this site.

Also,  you have this free of charge online textbook on Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.

The referred lessons are the part of this textbook under the topic
"Properties of triangles".


Save the link to this online textbook together with its description

Free of charge online textbook in GEOMETRY
https://www.algebra.com/algebra/homework/Triangles/GEOMETRY-your-online-textbook.lesson

to your archive and use it when it is needed.