Geometry Y1 Flashcards by Josh Connor

Q

Cosine rule

A

a^2 = b^2 + c^2 - 2bc*cosA

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Q

Sine rule

A

sinA/a = sinB/b = sinC/c

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Q

Area of a triangle

A

1/2 a b sinC

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Q

Arc length

A

r*theta (in radians)

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Q

Sector Area

A

1/2 r^2 theta

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Q

Segment Area

A

1/2 r^2 (theta - sin(theta))

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