Alternate Angles Demo

This example demonstrates the relationship between alternate interior angles formed by parallel lines cut by a transversal. Key math concepts include properties of parallel lines and the theorem that alternate interior angles are congruent. Construction involves using commands like Line, Intersect, Angle, and Point to draw lines, find intersections, measure angles, and mark points. Suitable for middle school geometry education to visually show how alternate angles change as the position of parallel lines varies dynamically.