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How many perpendicular faces does a pentagonal prism have?
A pentagonal prism has only 7 faces. Each of the five lateral faces is perpendicular to the two bases: that makes 10 pairs of mutually perpendicular faces. In general, the lateral faces are not perpendicular, but four of them may be perpendicular to one or more of its neighbors - at most 4 more pairs. Still not 25!
Which soilds have no perpendicular faces?
Spheres, cones and cylinders have no perpendicular faces that meet each other at right angles.
Does an octagonal prism have perpendicular faces?
Prisms with any number of sides can have perpendicular faces. Often both end faces are perpendicular to the length. In the case of a REGULAR octagonal prism, there will be four pairs of parallel faces, where each face of a pair will be perpendicular to the two faces of one of the other pairs. There is not much that can be said with certainty about an irregular octagonal prism.
What shapes have perpendicular faces?
A cuboid
What 3D shapes have perpendicular faces?
Hexagonal prism has percandicular faces
