6th Grade · Geometry
Vertical Side
6.G.A.3
Definition
A side that runs up and down; its length is the difference of the y-coordinates.
Examples
- Left side from (1,1) to (1,3): length = |3-1| = 2.
- Subtract the y-coordinates of the endpoints.
Key rule
Find a vertical side's length by subtracting y-coordinates.
Memory hook
Up-down side — subtract the y's.