HSG.CO.A.1

Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.

Example Problems
Write the equation of a line that is parallel to and that passes through the point .
Write the equation of a line that is perpendicular to and that passes through the point .
Write the equation of a line that is parallel to and that passes through the point .
Khan Academy Resources
Goblins

1-on-1 AI tutoring aligned to HSG.CO.A.1. Instant help for students, real-time insights for teachers.

Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.

Free for teachers, forever →