Hexagon

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6    -sided shape is called a    Hexagon Science & Nature > Polygon Names

Area of a Regular Hexagon    has the mathematical formula    6(s^2√3)/4 Where s=side of the hexagon Science & Nature > Mathematical Formulae

Dendrite    is    Hexagonal Ice Crystals With Complex and Often Fernlike Branches Science & Nature > Snow and Ice

Snow    is    Frozen Precipitation Composed of Ice Particles in Complex Hexagonal Patterns Science & Nature > Weather