Geometry Flashcards by Adna Y | Brainscape

Q

cosine rule

A

a^2 = b^2 + c^2 - 2bcCosA

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Q

arc length (radians)

A

rθ

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Q

sector area (radians)

A

1/2 r^2θ

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Q

segment area (radians)

A

1/2 r^2 (θ-sinθ)

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