3D Shapes Chart |
Spectrum Chart - 690 : 3D Shapes
1. Pyramid - A pyramid is a
three-dimensional shape. It has triangular sides that come together
in a point at the top, call the "apex". A pyramid with a
square base (bottom) and four sides is called a square pyramid. A
pyramid with a triangular base and three sides is called a
tetrahedron.
2. Cube - A cube is a three-dimensional
solid object bounded by six square faces, facets or sides with three
meeting at each vertex. A cube is a block with all right angles and
whose height, width and depth are all the same.
3. Sphere - A sphere is a perfectly round
geometrical object in three-dimensional space that is the surface of
a completely round ball. The longest straight line connecting two
points of the sphere, passes through the centre and its length is
thus twice the radius, it is a diameter of the sphere.
4. Cuboid - A cuboid is a 3D shape.
Cuboids have six faces, which form a convex polyhedron. Cuboid has 12
edges, 8 corners or vertices & 6 faces. Cuboid shapes are often
used for boxes, cupboards, rooms, buildings etc.
5. Cylinder - A cylinder is one of the
most basic curved geometric shapes, with the surface formed by the
points at a fixed distance from a given line segment, known as the
axis of the cylinder. The shape can be thought of as a circular
prism. Both the surface and the solid shape created inside can be
called a cylinder.
6. Cone - A cone is a solid object that
one gets when one rotates a right triangle around one of its two
short sides, the cone's axis. The disk made by the other short side
is called the base, and the point of the axis which is not on the
base is the cone's apex or vertex. An object that is shaped like a
cone is conical.
7. Triangular Prism - Triangular prisms
are three-dimensional solids formed by putting rectangles and
triangles together. A triangular prism is a three-sided prism, it is
a polyhedron made of a triangular base, a translated copy and 3 faces
joining corresponding sides.
8. Hemisphere - A hemisphere is half of a
sphere. A sphere can be divided by a plane into two equal parts known
as hemisphere. A sphere makes two equal size hemisphere.
9. Torus (Ring) – A Torus is a shape
from geometry that is obtained by rotating a circle in 3D space. To
obtain a torus, the point around which the rotation occurs must be in
a plane with the circle. If the point of rotation lies outside the
circle, the shape of the torus will have a hole, and the torus will
be called ring torus.
10. Ellipsoid – An ellipsoid is a shape
like a sphere, but it may be longer in one or more directions, like
an egg or a rugby ball. It is the 3 dimensional analogue of an
ellipse.
11. Tube - A tube is a long hollow cylinder
used for moving fluids or to protect electrical or optical cables and
wires.
12. Helix - A helix is a curve in three
dimensions. It looks a bit like a spiral. Each helix has a line
called its axis. The helix has a constant angle to this line. Helices
are often seen in nature and the sciences. Examples of helix are
coil springs and the handrails of spiral staircases.
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