Geometry

Question Analysis

This question involves identifying which angle forms an alternate interior angle pair with an angle when a transversal intersects two lines. The main focus is on understanding the concept of linear pair angles and their properties.

 

Key Concept Explanation

Alternate interior angles are located inside the two intersected lines and on opposite sides of a transversal.

 

Option Analysis

Option A: ∠2 and ∠8 are on opposite sides of the transversal () and inside the two lines( and ), making them alternate interior angles.

Option B: ∠5 and ∠8 are adjacent and form a straight line, making them a linear pair.

Option C: ∠7 and ∠8 are adjacent and form a straight line, making them a linear pair.

Option D: ∠9 and ∠8 are on opposite sides of the transversal (