Question

What of the following basic rules is NOT true about geometry?

A. A straight line intersecting two parallel lines produces corresponding equal angles

B. Similar triangles have the same sides

C. Similar triangles have the same angles

D. The sum of the interior angles of any triangle equals 180°

E. None of the above

Answer 1

A. A straight line intersecting two parallel lines produces corresponding equal angles.

Explanation:

If two straight lines are parallel, and a straight line intersects them, then we get alternate angles equal, exterior angle equal to the opposite interior angle on the same side and the interior angles on the same sides equal to two right angles.

Hence, here the rule that is not true is : A. A straight line intersecting two parallel lines produces corresponding equal angles.