Equal Chords And Their Distances From The Centre
Chapter Name : Circles |
Sub Topic Code : 104_09_10_06_01 |
Topic Name : Equal Chords And Their Distances From The Centre |
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Sub Topic Name : Equal Chords And Their Distances From The Centre |
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Introduction
Properties of equal chords and their distance from the center of circle.
Pre-Requisites:
Knowledge about circles, chords and perpendicular.
Activity:
Equal chords are equidistant from the centre.
Real Life Question:
How to measure the distance of the chord from centre.
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Chord | Take two points on circle and join the line segment, that line segment is known as chord. |
| Perpendicular distance | The shortest distance from any point to a line segment. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Draw the perpendicular from centre to the chord | Measure the distance of the perpendicular and repeat it for two equal chords. |
Real life uses :
Solving geometrical problems of chords.
Practical examples around us
| Examples | Explainations |
|---|---|
| Proving two chords equal | The two chords will be equal if they are equidistant from centre. |
What you learn in Theory:
Proving the associated theorems.
What you learn in Practice:
Use of the perpendicular from centre to the chord.