Final answer:
In Giotto's Adoration of the Magi, Mary is depicted as larger than Joseph and the angel to emphasize her role as the central figure in the painting.
Step-by-step explanation:
In Giotto's Adoration of the Magi, Mary is depicted as larger than Joseph and the angel. This is a reference to Mary's role as the central figure in the painting. By making her larger, Giotto emphasizes her importance and draws attention to her. This technique is commonly used in religious art to highlight the significance of certain figures or themes.