Thursday 18 December 2014

What do you mean by Concentric Circles?

Understand Concentric Circles. Click on the Link to Watch the VIDEO explanation: 
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Concentric Circles
Draw a circle C1 with centre O and radius is equal to 2 cm.
With centre O and radius is equal to 3 cm draw another circle C2. 
With centre O and radius is equal to 5 cm draw third circle C3.
We say the these circles C1, C2, C3 are said to be Concentric.
Concentric circles are circles having the same centre but different radii.
Here, in the given fig.  we observe that the 3 circles C1, C2, C3 have the same centre O but different radii.
 OA not equal to OB is not equal to OC.
Hence, the  three circles are concentric.

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