Angle Subtended By A Chord At A Point
Chapter Name : Circles |
Sub Topic Code : 104_09_10_03_01 |
Topic Name : Angle Subtended By A Chord At A Point |
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Sub Topic Name : Angle Subtended By A Chord At A Point |
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Introduction
Angle subtended by chord at a point on circle.
Pre-Requisites:
Knowledge about circles, chord and arcs
Activity:
Angle subtended by the chord and their properties.
Real Life Question:
How can a chord subtend an angle at a point on circle?
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. |
| Angle subtended | Any chord can subtended angle at three points of circle i.e. major and minor arc and centre. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Draw a chord | Find the angle subtended by chord at different points of circle. |
Real life uses :
Solving various geometrical problems.
Practical examples around us
| Examples | Explainations |
|---|---|
| Spokes of the wheel | The spokes (chords) of the wheel subtends equal angle on the circumference. |
What you learn in Theory:
Chord of a circle subtends angle on it.
What you learn in Practice:
Finding the subtended angle at different point viz. arcs and centre.