Question

question 10 of 10
the law of cosines can only be applied to right triangles.
a. true
b. false

Explanation:

The law of cosines is applicable to all triangles, not just right - angled triangles. The formula for the law of cosines is \(c^{2}=a^{2}+b^{2}-2ab\cos C\), where \(a\), \(b\), \(c\) are the sides of the triangle and \(C\) is the angle opposite to side \(c\). It can be used to find a side length when two sides and the included angle are known or to find an angle when all three side lengths are known for any triangle.

Answer:

B. False