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Basic Mathematics QUESTION #2863
Question 1
Two parallel lines are cut by a transversal. If one of the co-interior (same-side interior) angles is \(65°\), what is the other co-interior angle?
  • 65°
  • 105°
  • 115°✔️
  • 125°
Correct Answer Explanation
Co-interior angles (also called consecutive interior angles or same-side interior angles) are supplementary — they add up to \(180°\). So the other angle \(= 180° - 65° = 115°\).