Mathematics for IGCSE & O level - Angles (Section 2 - No. 48)
What is the relationship between two angles that are on the same side of a transversal and inside two parallel lines?
They are equal.
They are supplementary.
They are complementary.
They are always obtuse.
คำอธิบาย
These are co-interior angles and are supplementary, meaning their sum is 180°.