How do you solve the triangle given A=100^circ, a=125, c=10?

1 Answer
May 4, 2017

Use the Law of Sines (and a calculator)

Explanation:

(sin(/_A))/a=(sin(/_C))/c

rarr sin(/_C)=c*(sin(/_A))/a = 10 * sin(100^@)/125~~0.07878462

rarr /_C = arcsin(0.07878462) ~~4.518709095^@

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/_B = 180^@-(/_A+/_C) ~~ 75.48129^@

b=a/Sin(/_A) *sin(/_B) ~~122.8749758