Euclid's Elements: Introduction

Euclid Elements -- Introduction 1.0

Euclid's elements: definitions, postulates, and axioms

Number Theory: The Euclidean Algorithm Proof

Euclid's Algorithm | State and Proof Euclid's Algorithm || Find gcd of a & b || GCD (a,b) | BScMaths

Proof for Euclidean Algorithm - Includes explanation of Euclid's original notes

Euclid as the father of geometry | Introduction to Euclidean geometry | Geometry | Khan Academy

Basic geometry: language and labels | Introduction to Euclidean geometry | Geometry | Khan Academy

Basic Euclidean Geometry: Points, Lines, and Planes