Cosine and sine rules

Use the sine rule (ambiguous case is required), 𝑎 sin(𝐴) = 𝑏 sin(𝐵) = 𝑐 sin(𝐶), where 𝑎, 𝑏 and 𝑐 are the side lengths of the triangle and 𝐴, 𝐵 and 𝐶 are the corresponding opposite angles.