Koryn is building a house. In order to visualize the house, she is building a model. She tapes off two squares with the first square being 3 feet larger than the second square. The total area of the squares is modeled by the equation:

(y+3)^2+y^2=369

a) What is the side length of the smaller square?

b) What is the area of the smaller square?

c) What is the side length of the larger square?

d) What is the area of the larger square?