Geometry Solid Figures Edges

Solid figures are to have, length, depth, and height these are the three dimensions. These are Three dimensional shapes.  The examples for a Solid figures are sphere, cube, cuboids, cylinder, cone, Prism, Pyramid, Dodecahedron, Octahedron, and Tetrahedron. Here we are going to see in detail about Solid figures. The real life example of a Solid shape is book, table, etc... edges means a corner or a point where lines meet.

 

Sphere:

  • A sphere is the set of all those points in the space which are equidistant from a fixed point.
  • The sphere has no edge.

 

Cube:

  • The solid shape which has all the sides equal in length is known as cube.
  • A cube has 12 edges

 

Cuboids:

  • The Solid like a matchbox, an ordinary brick, a room, etc., having six rectangular faces are parallel and congruent, are known as cuboids. A cuboid is also known as rectangular parallelepiped.
  • A cuboid has 12 edges.

 

 

Cylinder:

  • Solid line measuring jars, circular pillars, circular pencils, Circular pipes, road rollers and gas cylinders are said to have a cylindrical shape.
  • There is no edge for the cylinder.

 

 

 

Cone:

  • If an Right angled triangle is revolved about one of the sides containing the right angle, the solid thus generated is called a right circular cone. 
  • A cone has one edge

 

 

Pyramid:

  • A solid shaped object with a flat, often square, base and four flat triangular sides which slope inwards and meet to form a point at the top.
  • There are four edges in a pyramid

 

Dodecahedron:

  • A Dodecahedron is a solid shaped figure, which has twenty vertices, thirty edges and twelve equivalent pentagonal triangular faces.

 

Octahedron:

  • An Octahedron is a solid shaped figure which has six vertices, twelve edges, and eight equivalent equilateral triangular faces.

 

Tetrahedron: 

  • A Tetrahedron is a solid shaped figure which has four vertices , six edges, and four equivalent equilateral triangular faces.