what is circle inside a circle (like that of a pipe's upper part) called and what is its area???
Anonymous:
It is called concentric circle. which area do you want---the inner concentric circle or the area between the two concentric circles?
The region between two concentric circles is called annulus
thanks
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Area = area of outer circle - area of inner circle
=π(R² - r²)
See the attachment.
=π(R² - r²)
See the attachment.
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Answered by
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i think its a ring
area of it is=
area of it is=
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