Concentric Circles Explained With Examples:
Revision Notes for Exams
BY Team Aakash Byju's
If two or more circles have the same centre point with different radius then they are concentric in nature.
The region between two concentric circles with different radius is known as an annulus.
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In two concentric circles, the chord of the larger circle, when touches the smaller circle, it bisects at the point of contact.
Theorem
Concentric Circle equation
Concentric Circle Equation
Example
Find the area (annulus) between two concentric circles whose diameters are 35 cm and 21 cm respectively?
Continuation of Example