From the following solids which have curved edges.

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Cone

Cylinder

Prism

Pyramid

answer is A.

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Detailed Solution

Given four solids, we need to tell which of them have curved edges.
Since, cone is a 3D shape with bottom circular, body curved, and one apex.
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Therefore, cone has curved edge.
We know that cylinder a 3D shape with top and bottom circular, curved body and no apex.
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Therefore, cylinder has curved edges.
A prism is a 3D solid object in which the two ends are identical and prism is the combination of the flat faces, identical bases, and equal cross-sections.
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Therefore, prism has no curved edge.
Since, pyramid is a 3D shape and has a polygonal base and flat triangular faces and pyramid is formed by connecting the bases to an apex.
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Therefore, pyramid has no curved edge.
Hence, options (1) and (2) are correct.

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