Question

If $l\parallel m$ and $t$ is a transversal, then identify the exterior angles in the given figure.

• A. $\angle 1,\angle 2,\angle 3,and\angle 4$
• B. $\angle 1,\angle 2,\angle 7,and\angle 8$
• C. $\angle 1,\angle 2,\angle 5,and\angle 6$
• D. $\angle 3,\angle 4,\angle 5,and\angle 6$

Answer 1

The correct option is B $\angle 1,\angle 2,\angle 7,and\angle 8$

When a transversal intersects two parallel lines, the angles formed outside the two lines are called exterior angles.
In the given figure $\angle 1,\angle 2,\angle 7,and\angle 8$ are exterior angles.