Geometry | Draw 3-D Shapes from 2-D Shapes | 5th Maths Term 1 Unit 1

Geometry | Draw 3-D Shapes from 2-D Shapes | 5th Maths Term 1
5th Maths : Term 1 Unit 1 : Geometry

Draw 3-D shapes from 2-D Shapes

Properties/characteristics and Examples of Cone, Sphere, Cylinder, Cuboid, Cube.

Cube

Properties/characteristics:
(i) It is a 3-D shape
(ii) It has six faces
(iii) All sides are equal.
(iv) It has 8 vertices and 12 edges.
Cube Diagram
Examples:
Cube Examples

Cuboid

Properties/Characteristics
(i) It is a 3-D shape
(ii) It has six faces
(iii) It‛s opposite sides are equal
(iv) It has 8 vertices and 12 edges.
Examples:
Cuboid Examples

Cylinder

Properties/Characteristics
(i) It is a 3-D shape
(ii) Two bases lie in upper and lower surfaces in a cylinder.
(iii) Height is the distance between the two bases.
Examples:
Cylinder Examples

Sphere

Properties/Characteristics
(i) It is a 3-D shape
(ii) It has one surface
(iii) All points on the surface are at the same distance from the center
(iv) It has no vertices and edges
Examples:
Sphere Examples

Cone

Properties/Characteristics
(i) It is a 3-D Shape.
(ii) Base of a cone is circular.
(iii) The distance from the top of the cone to the center of the base is called as height.
(iv) The distance from the apex to any point lying on the circumference of base is called as slant height.
(v) The height and slant height are not equal.
Examples:
Cone Examples

l − slant height

h − height

r − radius

Activity

Write the 3-D shapes lying around us

3-D shapes exercise
Perspective View

What will you observe, if you look at this object from the front?

What will you observe, if you look at this object from the sideways?

Tags: Geometry | Term 1 Chapter 1 | 5th Maths, 5th Maths : Term 1 Unit 1 : Geometry
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