The document provides an overview of shapes, categorizing them into 2D and 3D types and explaining regular versus irregular shapes. It highlights the properties of shapes, including their boundaries and dimensions, and includes examples like polygons and solid figures. Additionally, the document discusses maps as visual representations of areas, showcasing various features and types.

1. MATHEMATICS PPT
SLIDES
AL-JANOUB INTL. SCHOOL
MADE BY-ANWAR PERWAIZ
CLASS-VIII

2. VISUALISING SOLID SHAPES

3. WHAT ARE SHAPES?
 A shape is the form of an object or its external
boundary , outline , or external surface , as
opposed to other properties such as color ,
texture , or material composition.
 Psychologists have theorized that humans
mentally break down images into simple
geometric shapes called geons . Examples of
geons include cones and spheres.

4. CONTENTS
 2D shapes
 3D shapes
 Regular shapes
 Irregular shapes
 Maping

5. 2D shapes
 2D shapes can be summarized by calling them
flat shapes
 Any shape that can be laid flat on a piece of
paper or any mathematical plane is a 2D shape.
As a student , your fist drawings probably used
basic shapes , such as squares , triangles , and
circles

6. Examples of 2D shapes
 POLYGONS
 QUADRILATERALS
 CIRCLE
 TRIANGLE
 SQUARE
 RECTANGLE
 PENTAGON
 HEXAGON
 OCTAGON

7. 3D shapes
 These shapes are solid or hollow
 They have three dimensions
 Length
 Width
 Height

8. EXAMPLES OF 3D SHAPES
 CUBE
 CUBOID
 SPHERE
 CONE
 CYLINDER
 SQUARE BASE PYRAMID

9. IRREGULAR SHAPES
 Irregular shapes are two dimension structure
which lies in a plane. These shapes will not have
all slides equal and all angles equal. Irregular
shape is denoted as when all the sides of the
shapes having different length and the value of
angles should not be same for all the angles. For
better understanding we should know the
difference between regular and irregular shapes.
Regular shapes have equal angles and equal
sides for example regular hexagonal , regular
pentagon etc.

10. REGULAR SHAPES
 Regular shapes have equal angles and equal
sides.
 For example: regular hexagonal , regular
pentagon etc.
 Below are some examples of regular shapes
and irregular shapes: Regular shapes: Above
shapes , triangle , square , pentagon and
hexagon , having some sides and same angles

11. EXAMPLES
 SQUARE
 REGULAR HEXAGON
 REGULAR PENTAGON
 REGULAR OCTAGON
 EQUILATERAL TRIANGLE
 RHOMBUS

12. MAP
 A map is a visual reprensentation of an entire area or
a part of a area , typically represented on a flat
surface. The work of map is to illustrate specific and
detailed features of a particular area , most frequently
used to illustrate specific and detailed features of
particular area , most frequently used to illustrate
geography. There are many kinds of maps; static ,
Two-Dimensional , Three Dimensional , dynamic
and even interactive. Maps attempt to represent
various things , like political boundaries , physical
features , roads , topography , population , climates ,
natural resources and economic activities

13. MAP IMAGES

14. THANKYOU
SEE YOU NEXT TIME