Question

question 4 of 10
in order to apply the law of cosines to find the length of the side of a triangle,
it is enough to know which of the following?

a. the measure of an angle and the length of the side opposite that
angle
b. the lengths of two of the triangles sides and the measure of the
angle between them
c. the area of the triangle

Explanation:

The law of cosines formula is \(c^{2}=a^{2}+b^{2}-2ab\cos C\), where \(a\), \(b\) are two sides of the triangle and \(C\) is the included angle (the angle between \(a\) and \(b\)).

Answer:

B. The lengths of two of the triangle’s sides and the measure of the angle between them