Answer:
The book he wrote became the foundation for modern geometry.
Step-by-step explanation:
Euclidean geometry is the mathematical operation associated with Alexandrian Greek mathematician Euclid, which he explained in his textbook on geometry: the Components.
Euclid's system consists in considering a short collection of intuitively appealing assumptions and concluding many other theorems from these assumptions. Euclid was the first to show how suggestions from initial mathematicians could fit into a general deductive and logical method.