Lines and Angles

A line segment has two endpoints

A line segment has two endpoints, a ray has one endpoint, and a line extends infinitely in both directions. Collinear points lie on the same line. Ang

Adjacent angles share a common vertex

Adjacent angles share a common vertex and arm, with non-common arms on different sides of the common arm. When non-common arms of adjacent angles form

Axiom 6

Axiom 6.1: If a ray stands on a line, the sum of two adjacent angles formed is 180°. Axiom 6.2: If the sum of two adjacent angles is 180°, then their

When two lines intersect

When two lines intersect, they form two pairs of vertically opposite angles. Theorem 6.1 states that vertically opposite angles are always equal. This

Parallel lines never intersect and maintain

Parallel lines never intersect and maintain equal perpendicular distance throughout. When a transversal intersects parallel lines, it creates correspo