Question

a ______ has cross - sectional shapes, taken parallel to a base, that are similar but not congruent to one another.
a. pyramid
b. cube
c. polygon
d. prism

Explanation:

• A pyramid's cross-sections parallel to its base are similar to the base but smaller (not congruent, as they shrink toward the apex).
• A cube and prism have congruent cross-sections parallel to their bases.
• A polygon is a 2D shape, so it does not have 3D cross-sections.

Answer:

A. pyramid