Co-interior
Jargon-Free Definition
Two angles inside parallel lines on the same side of a crossing line.
QCAA/AC9 Definition
A pair of interior angles on the same side of a transversal cutting parallel lines.
Examples of Word Use in School
- Identify the co-interior angles.
- Explain why the co-interior angles add to
. - Use co-interior angles to Solve the missing angle.
Mathematical Definition
When a transversal crosses parallel lines, co-interior angles are supplementary, so their measures sum to