Geometry · Points, Lines & Angles
Congruent Segments
HSG-CO.A.1
Definition
Segments that have equal length, indicated by matching tick marks.
Examples
- If AB = CD, the segments are congruent, shown with matching tick marks.
- Two 6 cm segments are congruent because they have equal length.
Key rule
Matching tick marks on a diagram show which segments are congruent.
Memory hook
Same length, matching tick marks.