A triangle has sides A, B, and C. The angle between sides A and B is $(pi)/2$ . If side C has a length of $9$ and the angle between sides B and C is $pi/12$ , what is the length of side A?

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Answer 1 · 2018-05-20T13:27:15

By the definition we get $a=BC=9sin(pi/12)$

In the right-angled triange we have $sin(pi/12)=a/c$ and $sin(pi/12)=1/4sqrt(2)(sqrt(3)-1)$

A triangle has sides A, B, and C. The angle between sides A and B is (pi)/2(pi)/2. If side C has a length of 9 9 and the angle between sides B and C is pi/12pi/12, what is the length of side A?