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Cloned from: Geometry Formulas

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Area of a triangle
A = 1/2 bh = 1/2 ab sinθ
Area of a circle
A = πr^2
Circumference of a circle
C = 2πr
Area of a sector of a circle
A = 1/2 r^2 θ
Arc length of a sector of a circle
s = rθ (θ in radians)
Volume of a sphere
V = 4/3 πr^3
Area of a sphere
A = 4πr^2
Volume of a cylinder
V = πr^2 h
Volume of a cone
V = 1/3 πr^2 h
Area of a cone
A = πr sqrt(r^2+h^2)
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