Tangent To A Circle
Chapter Name : Circles |
Sub Topic Code : 104_10_10_02_01 |
Topic Name : Tangent To A Circle |
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Sub Topic Name : Tangent To A Circle |
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Introduction
A tangent is a line that touches the circle at only one point.
Pre-Requisites:
Circles
Activity:
Place the straight wire in such a manner that it comes in contact with any one point of the Bangle. This is a tangent.
Real Life Question:
Where can you see tangent lines to circular objects in day to day life?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Circle | A collection of points in a plane from a common center and distance. |
| Tangent | A line that intersects the circle at one point. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Wire and bangle | The objects can be placed to show a tangent line to a circle. |
Real life uses :
To find distances to an edge of a circle from an given point.
Practical examples around us
| Examples | Explainations |
|---|---|
| Wheel | A wheel has a circular outline. The inner spokes are secants and the surface is tangent to the wheel. |
What you learn in Theory:
Tangent to a circle.
What you learn in Practice:
Tangents in real life to circular shapes.