Introduction
Chapter Name : Three Dimensional Geometry |
Sub Topic Code : 104_12_11_01_01 |
Topic Name : Introduction |
|
Sub Topic Name : Introduction |
|
Introduction
Ours is a three-dimensional world. Every object we touch or see has three dimensions that are measured in length, height, width.
Pre-Requisites:
Knowledge of vectors.
Activity:
You will observe a three dimensional cube is formed.
Real Life Question:
Is your computer monitor a three dimensional object?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Three dimensional geometry | An object that has height, width and length. |
| Vector | A quantity which has both magnitude and direction. Velocity is vector quantity. |
| Magnitude | The size or measurement of the applied force. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Paper ,pen | Draw a square on paper and middle of first square draw another square. Join all corners of both squares. |
Real life uses :
Architects use three dimensional figures to show building structure, three dimensional Geometry is used in animations, making 3D movies.
Places to visit :
TV screens, computer monitor, the room of your house are all three dimensional shapes.
Practical examples around us
| Examples | Explainations |
|---|---|
| 3D animation | 3D animation creates three dimensional pictures so that our cartoon images look real. A 3D model is mathematical representation of any three dimensional object. |
What you learn in Theory:
Three dimensional figures are shown in X, Y, Z Cartesian co-ordinate system.
What you learn in Practice:
Three dimensional figures are everywhere in real world. We live in three dimensional worlds.