Q:

W hich of the following phrases best describes the Law of​ Cosines? Choose the correct answer. A. The length of a side of a triangle is equal to the sum of the squares of the remaining two​ sides, minus twice the product of the two remaining sides and the cosine of the angle between them. B. The length of a side of a triangle is equal to the sum of the squares of the remaining two​ sides, plus twice the product of the two remaining sides and the cosine of the angle between them. C. The square of any side of a triangle is equal to the sum of the squares of the remaining two​ sides, plus twice the product of the two remaining sides and the cosine of the angle between them. D. The square of any side of a triangle is equal to the sum of the squares of the remaining two​ sides, minus twice the product of the two remaining sides and the cosine of the angle between them.

Accepted Solution

A:
Answer:B. The length of a side of a triangle is equal to the sum of the squares of the remaining two​ sides, plus twice the product of the two remaining sides and the cosine of the angle between them.Step-by-step explanation:This is the correct solution to your question.Hope this helps!!!Kyle.