Question

what is a midpoint?
choose the correct answer below.
a. a midpoint is a segment whose endpoints are a vertex of a triangle and the midpoint of the opposite side.
b. a midpoint is a segment connecting the midpoints of two sides of a triangle.
c. a midpoint is a perpendicular segment from a vertex of a triangle to the line containing the opposite side.
d. a midpoint is a point that bisects a segment into two congruent segments.

Explanation:

Option A describes a median of a triangle, not a midpoint. Option B describes a midsegment of a triangle. Option C describes an altitude of a triangle. Only option D matches the standard definition of a midpoint: a point that splits a segment into two equal, congruent parts.

Answer:

D. A midpoint is a point that bisects a segment into two congruent segments.