Mathematics for IGCSE & O level - Angles (Section 2 - No. 40)
If two parallel lines are cut by a transversal, which pair of angles are equal?
Alternate interior angles
Co-interior angles
Corresponding angles
Vertically opposite angles
คำอธิบาย
Alternate interior angles and corresponding angles are equal, as well as vertically opposite angles, but co-interior angles are supplementary.