Law of cosine in oblique triangle Grade 11 Strengthened Senior High School Gen math Third quarter

What is cosine law? How to use cosine law in solving oblique triangle? What is the formula of law of cosine? When to use cosine law? This video lesson discussed law of cosine in solving missing parts or unknown parts of oblique triangle. It includes examples of calculating missing parts. It also present worksheet on oblique triangle. This lesson is for Grade 11 Strengthened senior high school curriculum, General mathematics, third quarter.