Question

what divides an angle into two congruent angles?
a. arcs
b. midpoint
c. hashmarks
d. angle bisector

Explanation:

• Option A: Arcs are part of circles and don't divide an angle into two congruent angles.
• Option B: A midpoint is related to segments (dividing a segment into two equal parts), not angles.
• Option C: Hashmarks are used to indicate congruent segments or angles (but don't divide an angle).
• Option D: By definition, an angle bisector is a line, ray, or segment that divides an angle into two congruent (equal - measure) angles.

Answer:

D. angle bisector