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Why are cylinders and cones not considered to be polyhedrons?
Cylinders and cones are not considered polyhedrons because they do not have flat faces, which is a defining characteristic of polyhedrons. Polyhedrons are three-dimensional shapes made up of flat surfaces, while cylinders and cones have curved surfaces. Additionally, polyhedrons have straight edges where faces meet, whereas cylinders and cones have curved edges. Therefore, cylinders and cones are classified as curved surfaces rather than polyhedrons.
What is the similarity among spheres cones and cylinders?
A circular cross-section.
Differences between cones and pyramids?
cones have round bases
Which soilds have no perpendicular faces?
Spheres, cones and cylinders have no perpendicular faces that meet each other at right angles.
What are 20 geometric shapes in nature?
The sun moon and other planets are spheres. Pine trees are cones. Tornadoes are upside down cones. The trunks of some trees and the stems of some plants are cylinders.
