Some Geometrical Objects in Our Environment
Solid Figures
Some objects which we can see in our environment are called
solid figures.
You have probably seen objects that have these shapes.
rectangular prism
cube
cylinder
cone
sphere
pyramid
You can think of real objects that have these shapes. For example,
a tennis ball is a sphere.
Rectangular prism
- This box is a rectangular
prism.
- Each corner of the box
is a vertex of the prism.
- Each edge of the box is
an edge of the prism.
- Each side of the box is a
face of the prism.
1. Rectangular prism
Vertex
Edge
Face
A rectangular prism has 8 vertices, 12 edges and 6 faces.
2. Cube
Vertex
Edge
Face
A cube has 8 vertices, 12 edges and 6 faces.
3.Sphere
A sphere has no faces, edges or vertices.
4. Cylinder
Face
Edge
A cylinder has 0 edges and 2 faces.
5.Cone
Vertex
Edge
Face
A cone has 1 faces, 1 vertex and 0 edge.
6. Pyramid
Vertex
Face
Edge
A pyramid has 5 faces, 5 vertices and 8 edges.
Plane Figures
Figures that lie on a flat surface is called the plane figures.
Triangle
Pentagon
Rectangle
Square
Hexagon
Circle
Plane Figures
Rectangular prism
Rectangle
Cube
Square
Sphere
Circle
Plane Figures
Cylinder
Pyramid
Circle
Triangle
Solid
Figure
Number of
Faces
Number of
Edges
Number of
Vertices
Exercise - 1
Exercise - 2
Exercise - 3
Exercise - 4
Game
Name Shapes
Can
you
name
triangle
Good
work!
the
circle
square
shapes?
rectangle
Press spacebar
( It is from the Bangkok Resources )
Resources
The following URL is a starting place, feel free to search the
Internet for other related information.
http://www.math.com/school/subject3/lessons/S3U4L4GL.html
Presented by : Daw Khin Ma Gyi(Senior Teacher)
No(2) B.E.H.S Dagon
Union of Myanmar