Question

question 8 of 21
the bases for a cylinder must be two discs that are parallel and.
a. have one lying directly above the other.
b. similar.
c. squares.
d. congruent.

Explanation:

A cylinder's bases are two circular discs (not squares, so C is wrong). Similarity (B) is broader; congruence means same size/shape. For a cylinder, the two bases must be congruent (same radius) and parallel. "Directly above" (A) is about alignment, but congruence (D) defines their size/shape relation.

Answer:

D. congruent.