Which solid has no edges?

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Prepare for the MSTEP 3rd Grade Math Test with interactive quizzes and multiple-choice questions. Get essential hints and in-depth explanations to excel in your exam!

Multiple Choice

Which solid has no edges?

Explanation:
Edges are the lines where two faces meet. A sphere has a single, smooth curved surface with no flat faces, so there are no lines where faces come together—no edges. A cylinder has a curved side plus two circular bases, and the places where the curved surface meets each base form edges. A cube has many straight edges where its square faces meet. A pyramid also has edges where its triangular faces join. So the sphere is the one with no edges.

Edges are the lines where two faces meet. A sphere has a single, smooth curved surface with no flat faces, so there are no lines where faces come together—no edges. A cylinder has a curved side plus two circular bases, and the places where the curved surface meets each base form edges. A cube has many straight edges where its square faces meet. A pyramid also has edges where its triangular faces join. So the sphere is the one with no edges.

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