10 Questions
Which formula relates the lengths of the sides of a triangle to the cosine of one of its angles?
Law of cosines
What is the formula for the law of cosines?
c^2 = a^2 + b^2 - 2abcos(γ)
When does the law of cosines reduce to the Pythagorean theorem?
When γ is a right angle
What is the cosine of a right angle?
0
What does the law of cosines generalize?
Pythagorean theorem
Which triangle does the law of cosines apply to?
Scalene triangle
What does the law of cosines relate?
The lengths of the sides of a triangle
Which angle does the law of cosines use?
γ
What happens if the triangle is a right triangle?
The law of cosines reduces to the Pythagorean theorem
What is the formula for the law of cosines?
c^2 = a^2 + b^2 - 2ab cos(γ)
Test your knowledge of the law of cosines with this quiz! Explore how the lengths of triangle sides relate to the cosine of its angles. Challenge yourself with questions about the formula and its applications.
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