Geometry 2

Cuboid

A = a(ab+bc+ac), V = A*h

In case of a cube (all edges are equal):

A = 6*a², V=a³

Tetrahedron

Base area: B = a²√3, Volume: V=(a³√2)/12

Octahedron

Volume: V = (a³√2)/3

Cylinder

A = 2π*r*h, V = 2πr(r+h)

Cone

Base area: B = πr², Volume: V=(B*h)/3

Sphere

A = 4πr², V = 4/3*π*r³

Ellipsoid

V = 4/3*π*a*b*c