Question

Consider a triangle ABC lIke the one below. Suppose that B=97°, C=41°, and a = 55. (The figure Is not drawn to scale.) Solve the triangle.Round your answers to the nearest tenth.If there is more than one solution, use the button labeled "or"

Answer 1

Explanation:

Cosine Law

a² = b²+c²-2bc cos A

b² = c²+a² -2ca cos B

Sum of three angles of a triangle is 180°.

B = 97 ; C= 41; A = x

`\begin{gathered} A+B+C=180 \\ A+97+41=180 \\ A+138=180 \\ A=180-138 \\ A=42^0 \end{gathered}`