Question

parallel lines r and s are cut by two transversals, parallel lines t and u. how many angles are alternate interior angles with angle 9?

Explanation:

Step1: Recall alternate - interior angles

Alternate - interior angles are between two parallel lines and on opposite sides of a transversal.

Step2: Identify relevant angles

For line \(s\) and \(u\) with transversal \(t\), \(\angle8\) is an alternate - interior angle to \(\angle9\). For line \(r\) and \(u\) with transversal \(t\), \(\angle3\) is an alternate - interior angle to \(\angle9\).

Answer:

2