Basic Math

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Contents

1 Trigonometry
2 Geometry
- 2.1 Circle
- 2.2 Sphere

Trigonometry

Law of Sines: $\frac{a}{sin A} = \frac{b}{sin B} = \frac{c}{sin C} = 2R$
Law of Cosines: $c^2 = a^2 + b^2 + 2ab \cdot cos C$

Geometry

Circle

Area: $π r 2$

Sphere

Volume: $\frac{4}{3}\pi r^3$

Retrieved from "http://www.held.org.il/wiki/Basic_Math"

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