Question

what is alternate interior angle​

Answer 1

Step-by-step explanation:

When two lines are crossed by another line (called the Transversal): Alternate Interior Angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal. In this example, these are two pairs of Alternate Interior Angles: c and f.

Answer 2

As an example an equilateral triangle constructed with expandable side. The triangle ABC, the outer angle A is alternate to inner angle B. As you construct.