Question

In order to apply the law of cosines to find the measure of an interior angle, it is enough to know...?. . A. The lengths of all three sides of the triangle.. B. The area of the triangle. C. At least two of the angles of the triangle and the length of one of its sides.

Answer 1

option a

Explanation:

Answer 2

The correct answer is option A. Law of cosines is expressed as a^2=b^2+c^2−2bccosA. To be able to use this expression to find the interior angle, we need to know the lengths of all three sides of the triangle.