Visualizing Solid Shapes

1. VISUALISING SOLID SHAPES
POOJA CHAUDHARY
B.ED 2020-2022
IAMR B.ED COLLEGE

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Contents
 What is shape
 2-D Shapes
 3-D Shapes
 What are Faces, Vertices and Edges?
 Views of Solid Shapes
 How to Visualize a Solid Shape?

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What is shape ?
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.

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2-D Shape or Plane Figures
2-D shapes are plane geometric figures made up of
either straight or curved lines. They only have length
and width (breadth).
2-D shapes do not have any depth. Circles, triangles,
squares and rectangles are some examples of 2-D
shapes.
Shapes that are made up of three or more straight lines
are referred to as 'Polygons’.
Some common 2-D shapes are circle, oval, triangle,
square, diamond, rhombus, parallelogram, rectangle.

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Examples of 2-D Shapes
 POLYGON
 QUADRILATERALS
 CIRCLE
 TRIANGLE
 SQUARE
 RECTANGLE
 PENTAGON
 HEXAGON
 OCTAGON

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3-D Shape or Solid Shapes
A 3-D shape or a solid shape has a length, width and
height.
A solid shape occupies some space and rests on one or
more surfaces.
Cubes, cones, spheres, cuboids are some examples of
solid shapes.
Many real-world objects like a book, laptop, ball,
birthday cone resemble solid shapes.
Some of the 3-D shapes are cuboid, sphere, cone,
cylinder, pyramid, cube.

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Examples of 3-D Shapes
 CUBE
 CUBOID
 SPHERE
 CONE
 CYLINDER
 SQUARE BASE PYRAMID

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What are Faces, Vertices and
Edges?

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Faces
Every single surface of a solid shape is called a face.
For example, a cube has 6 faces. Observe the figure
shown below that shows a face of a cuboid.

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Vertices
In a solid shape, a 'Vertex' is defined as a point where
two or more lines meet. Vertices is the plural form of
the word 'Vertex'. A sphere is an exceptional shape
which does not have a vertex. Observe the following
figure which shows the vertex of a cube.

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Edges
In a solid shape, an 'Edge' is defined as a line
segment joining two vertices or two corners. The
following figure shows the edge of a cube.

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Views of Solid Shapes
All solid shapes have a top view, a side view and a front view. Let us
check out each one of them.
• Top View: The top view of a solid shape is the shape of an object
when we see it from the top.
• Side View: The side view of a solid shape is the shape of an object
when it is seen from one of its sides.
• Front View: The front view of an object is the shape of an object
when it is seen from the front side of the object.

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Observe the cube given below which shows its top, side and front
view.
3-D View – Front, Side and Top

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How to Visualize a Solid Shape?
A solid shape can be visualized in many ways. Some of them are listed
below.
 Visualizing a Solid Shape by
cutting it :
 Visualizing an Object by
its shadow:
 Visualizing Solid Objects by
imagining the smallest unit

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Thankyou