Aa Bb was crossed with aabb. What would be the phenotypic ratio of the progeny? Mention the term to denote this type of cross

This is an example of dihybrid cross.

Parents:  AaBb      ×         aabb
Gametes: AB, Ab, aB, ab         ×        ab, ab
  
F1 Generation:

	AB	Ab	aB	ab
ab	AaBb	Aabb	aaBb	aabb
ab	AaBb	Aabb	aaBb	aabb

Phenotypic Ratio: 1 : 1 : 1 : 1