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Laomultiplying the perimeter of the base by the height and adding the area of both bases.
sum of the area of its faces
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The first answer works only for a prism, not for polyhedra in general.
Well, honey, to find the surface area of a polyhedron, you gotta calculate the sum of the areas of all its faces. It's like wrapping a present - you gotta measure each side to know how much paper you need. So, grab your ruler, add up those face areas, and voilà, you've got the surface area of that geometric beast.
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What is The sum of the areas of a polyhedron's faces is?
the surface area
What is a flat surface of the polyhedron called?
It is a face of the polyhedron
What is a flat surface of a polyhedron called?
They are its faces
Is a cone a polyhedron?
NO a cone is not a polyhedron as it has a curved surface. Similarly sphere and cylinders r 3D but not polyhedrons
Why is a three dimensional figure with curved surface not a polyhedron?
Because that is how a polyhedron is defined.
