Question

question 1 of 42
which of the following best describes a cone?

a. a three - dimensional solid made from a pile of similar two - dimensional circles that grow smaller as the solid gets taller until it reaches a point at the vertex
b. a three - dimensional solid consisting of a base, a point not in the same plane as the base, and all the points between them
c. a three - dimensional solid made from two parallel and congruent discs not in the same plane and all the points between them
d. a three - dimensional solid consisting of two parallel congruent polygons and all the points between them

Explanation:

• Option A: Describes a cone (circular base, tapering to a vertex with similar circles).
• Option B: Describes a pyramid (base, apex, and points between).
• Option C: Describes a cylinder (two parallel congruent discs).
• Option D: Describes a prism (two parallel congruent polygons).

Answer:

A. A three - dimensional solid made from a pile of similar two - dimensional circles that grow smaller as the solid gets taller until it reaches a point at the vertex