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Sphere
They would be two right triangular pyramids.
A sphere, a cone, a section of a sphere or ellipsoid, a torus (doughnut) sliced by a plane perpendicular to its axis, a paraboloid. These are some examples.
There are many possible answers: A sphere sliced by a plane. An ellipsoid with two equal radii, sliced by a plane parallel to them. A paraboloid sliced by a plane perpendicular to its axis. A cone.
A prism is a generic term which refers to a 3-dimensional object with two congruent faces which are joined together by a face or faces. A cylinder, for example, is a crystal. Furthermore, the shape of the cross section depends on the inclination of the slicing plane.
Sphere
They would be two right triangular pyramids.
A sphere, a cone, a section of a sphere or ellipsoid, a torus (doughnut) sliced by a plane perpendicular to its axis, a paraboloid. These are some examples.
There are many possible answers: A sphere sliced by a plane. An ellipsoid with two equal radii, sliced by a plane parallel to them. A paraboloid sliced by a plane perpendicular to its axis. A cone.
It depends on the rock. Pumice is very weak and can be sliced through easily. Sandstone may be sliced through depending on its strength. Generally most rock types on the planet are are too hard to be sliced through with a sword.
A cone, or a parabolic section, or a section of a sphere like a hemisphere, or a torus (donut) sliced in half sideways.
The cross section of a figure is done by slicing part of the figure off a certain way. Inside the sliced area, there will be a 2-D figure. That 2-D figure is the cross section of the figure.
The samurai's blade sliced through the watermelon like butter.
A prism is a generic term which refers to a 3-dimensional object with two congruent faces which are joined together by a face or faces. A cylinder, for example, is a crystal. Furthermore, the shape of the cross section depends on the inclination of the slicing plane.
The prow of the sailing ship sliced cleanly through the waves.
There is no polyhedron that meets these requirements. But there are many possible non-polyhedral shapes: for example, a hemisphere, a cone, a torus (doughnut) sliced by a plane perpendicular to its axis.
When bread was sliced