Question

why would the law of cosines be used to solve for b in the triangle below? sas is given, and the unknown measure, b, is a side length. ssa is given, and the unknown measure, b, is a side length. sss is given, and the unknown measure, b, is an angle measure. asa is given, and the unknown measure, b, is an angle measure. done

Explanation:

The Law of Cosines is used when two sides and the included angle (SAS - Side - Angle - Side) are known and we want to find the third side. In this case, we have two sides (3.5 and 7) and the included angle (\(36^{\circ}\)), and we are solving for side \(b\).

Answer:

SAS is given, and the unknown measure, \(b\), is a side length.