Final answer:
The ancient Greeks believed in using mathematical ratios to determine the perfect proportions for their art, including the human figure.
Step-by-step explanation:
The ancient Greeks believed in using mathematical ratios to determine the perfect proportions for their temples, sculptures, and even the human figure. The sculptor Polykleitos developed mathematical rules for sculpting the human form, creating a canon of beauty based on ratios and proportions. These mathematical principles were later summarized by Galen, who emphasized that beauty consists in the proportions of the parts.