Question

what is the phenotypic and genotypic ratio of F1 progeny of dihybrid cross?

Answer 1

All individuals of F1 generation of a dihybrid cross had yellow and round seed (both dominant characters are expressed). Thus, as such there is no question of a ratio! It is 100% individuals with dominant traits of both selected characters.
Similarly, the genotype of all hybrids of the F1 generation is YyRr.