Question

In the given figure line $l\parallel m$, name the type of angles formed by $\angle 1$ and $\angle 2$.

• A. Vertically Opposite Angles
• B. Interior Alternate Angles
• C. Exterior Alternate angles
• D. Exterior allied Angles

Answer 1

The correct option is C Exterior Alternate angles

When a pair of parallel lines are cut by a transversal, alternate exterior angles are formed. Alternate exterior angles are a pair of angles on the outer side of each of the two parallel lines but on opposite sides of the transversal.
Hence, $\angle 1$ and $\angle 2$ are called Exterior Alternate angles.