**Makeba: What go the law of cosines reduce to when taking care of a right triangle?** A. The Pythagorean theorem B. The formula for a triangle’s area C. The legislation of cosines can not be used to a best triangle D. The law of sines

You are watching: What does the law of cosines reduces to when dealing with a right triangle

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**Answers and Views:**

Answer through the mathemagicianc^2 = a^2 + b^2 – 2ab cos C

When C is a appropriate angle

c^2 = a^2 + b^2

Look familiar ?

love and kisses,

Pythagoras

*Answer through Suzie s*WE use THE regulation OF COSINES and THE regulation OF SINES to deal with triangles that are not right-angled. Such triangles are called oblique triangles. The law of Cosines .

Right triangle.

*Answer by Philo*reduces come the Pythagorean Theorem, due to the fact that cos Θ = 0 when Θ = 90°, therefore the -2ab cos Θ term i do not care 0, and also so c² = a² + b² – 2ab cos Θ → c² = a² + b² + 0 → c² = a² + b²

*Answer by asymptote*As the mathemagician and Philo have actually said, it reduces to the Pythagorean theorem… however only once the enclosed edge is the appropriate angle! for this reason your inquiry should more accurately read something like:

“What does the law of cosines mitigate to once the enclosed edge is a right angle?”

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