Constructions

An angle is formed by two rays sharing a vertex. Learn to identify angle types, use a protractor to measure angles, and draw angles of any given size.

A triangle is a three-sided polygon. Learn the triangle inequality, how to construct triangles from given measurements using compass and ruler, and the main types of triangles.

A line segment is a straight path between two fixed points. Learn how to draw segments of a given length, measure them, and find the midpoint using a compass.