Question

when parallel lines are cut by a transversal, what are alternate interior angles?
a. complementary
b. supplementary
c. none of the answers
d. equal

Explanation:

When parallel lines are cut by a transversal, alternate interior angles are equal. This is a fundamental property in geometry. Complementary angles sum to \(90^{\circ}\), supplementary angles sum to \(180^{\circ}\), and since alternate - interior angles are equal (by the Alternate Interior Angles Theorem), options A and B are incorrect. So, the correct answer is that alternate interior angles are equal.

Answer:

D. Equal