Final answer:
Filippo Brunelleschi was the Italian Renaissance sculptor and architect credited with discovering the mathematically precise form of the rules of linear perspective.
Step-by-step explanation:
The Italian Renaissance sculptor and architect known for discovering the mathematically precise form of the rules of linear perspective in the 1400s was Filippo Brunelleschi.
He developed a geometrical understanding of perspective around 1420, and his understanding of perspective was quickly adopted by Renaissance artists. Brunelleschi's work in perspective was influential in the field of architecture and sculpture.