the elementary geometric shapes
Home
About the learning material
Introduction
Polyhedrons
Prism
>
Rectangular prism
Oblique prism
Pyramid
>
Pyramid
Cut pyramid
Shapes of rotation
Cylinder
Cone
Ball, torus and spherical surfaces
Cut shapes of rotation
Exercises
Test
Bibliography
Estonian
Russian
Home
About the learning material
Introduction
Polyhedrons
Prism
>
Rectangular prism
Oblique prism
Pyramid
>
Pyramid
Cut pyramid
Shapes of rotation
Cylinder
Cone
Ball, torus and spherical surfaces
Cut shapes of rotation
Exercises
Test
Bibliography
Estonian
Russian
the elementary geometric shapes
cut shapes of rotation
Section of a rotation shape depends on the location of the cutting plane:
with a vertical plane (parallel to an axis rotation of a shape) cut cylinder and a cone,
the horizontal plane (perpendicular to an axis rotation) cut shapes
and the inclined plane (at an angle to a turn axis) cut cylinder and a cone.
A sphere section is always the same - a circle. Its size depends on a distance of a cutting plane to the centre of a sphere.