Arc
Jargon-Free Definition
A curved part of a circle.
QCAA/AC9 Definition
A part of the circumference of a circle between two points.
Examples of Word Use in School
- Mark the arc between the two radii.
- Solve the length of the arc.
- Shade the major arc on the circle.
Mathematical Definition
A connected portion of a circle’s circumference determined by two endpoints and, in some cases, by a central angle.