The Cross Product a⃗ x b⃗ of two vectors a⃗ and b⃗ in a 3-dimensional vector space is a vector c⃗, which is perpendicular to the plane spanned by the vectors a⃗ and b⃗. The direction is made out by the right-hand rule.
a⃗ x b⃗ = |a⃗| |b⃗| sin∡(a⃗, b⃗) |n⃗|