Co interior angles: Properties Theorems and Proofs

Properties Theorems and Proofs Antithesis of the Theorem Co-interior Angles Co-interior Angle Theorem and Proof Solved Examples FAQs Alternate Interior Angles Definition The angles which are formed inside the two parallel lines, when intersected by a transversal, are equal to its alternate pairs. These angles are called alternate interior angles. Co-Interior angles are the angles formed by the two parallel lines and a traversal that is situated on the same side of the traversal within the boundary of the two parallel lines. These angles are supplementary in nature, i.e., the addition of the angles results in 180°. Learn what consecutive interior angles are and how they are related to parallel lines and transversals. Find out the properties, theorem, proof, and examples of consecutive interior angles. Co-interior angles sit on the inside of parallel lines. They appear after a straight line crosses two parallel lines. Each angle pairs with another angle. These pairs form a special total. Each pair sums to 180 degrees. People often call them interior angles on the same side.