Let us study about concentric circles,
In a large circle, two or more small circles inside a large circle and the center for all the circle inside is same. Other wise circle which have common center are known as concentric circle.
Wher R is the radius of the large circle, and r is the radius of the small circle.
In the figure we see that the center is same for both the circle.
For concentric circle we can find the area of ring inside large circle and small circle is given by.
Area of a ring = Area of large circle - area of small circle
= πR2 - πr2
= π(R+r)(R-r) Square units
Let us example for area of a ring in a concentric circle.
I hope the above explanation was useful, now let me explain how to find area of circle.
In a large circle, two or more small circles inside a large circle and the center for all the circle inside is same. Other wise circle which have common center are known as concentric circle.
Wher R is the radius of the large circle, and r is the radius of the small circle.
In the figure we see that the center is same for both the circle.
For concentric circle we can find the area of ring inside large circle and small circle is given by.
Area of a ring = Area of large circle - area of small circle
= πR2 - πr2
= π(R+r)(R-r) Square units
Let us example for area of a ring in a concentric circle.
I hope the above explanation was useful, now let me explain how to find area of circle.
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