Question

9
a. $\angle 1$ and $\angle 5$ are what type of angles?

Explanation:

Step1: Recall angle type definitions

Corresponding angles: formed when a transversal crosses two parallel lines, in same relative position. Alternate interior/exterior: on opposite sides of transversal, inside/outside parallel lines. Consecutive interior: same side, inside. Vertical: opposite, equal. Linear pair: adjacent, supplementary.

Step2: Analyze ∠1 and ∠5 position

The horizontal line is transversal? No, lines m and n are cut by horizontal line. ∠1 is at intersection of m and horizontal, ∠5 at n and horizontal. They are on same side of transversal (the line between m and n? Wait, no: the two slanted lines (m and n) are cut by the horizontal transversal. ∠1 and ∠5 are in the same relative position: both above the horizontal line, to the left of their respective slanted lines (m and n). So they are corresponding angles. Also, if lines m and n are parallel (implied by diagram's symmetry), corresponding angles. Also, can be called "corresponding angles" or check other types: not alternate (different sides), not vertical, not linear pair (not adjacent), not consecutive interior (not between lines). So main type is corresponding angles. Also, sometimes called "same - side" or "corresponding", but key is their relative position.

Answer:

Corresponding Angles (also, if considering parallel lines, they could be equal, but the type is corresponding angles)