7710709
Description
Flashcards by Ross Moody, updated more than 1 year ago
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Created by Oliver Balay
over 10 years ago
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Copied by Ross Moody
almost 8 years ago
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| Question | Answer |
| Radius of a circle |
The radius of a circle is the distance from the centre of a circle to any point on the circle.
Image:
Radius.gif (image/gif)
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| Diameter of a circle |
The diameter of a circle is twice as long as the radius.
Image:
Diameter (image/png)
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Image:
Pi (image/png)
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From the Greek alphabet: π = Pi For any circle, Circumference ÷ Diameter = 3.141592....... |
| Area of a Circle |
Area of a Circle:
A= π r 2
Image:
Area_of_Circle (image/png)
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| Circumference of a circle | The entire distance around a circle is called its circumference. C = 2πr or C= πD |
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