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How to find out radius of a circle if circumference is given..

Dear student
To make you understand how to calculate radius of a circle if circumference is given, I am taking an example.




I hope it helps you! If you still have any doubt, please get back to us.
 

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Dear student, I hope it helps you 
It is simple 
formula for finding circumference of circle is 2 TT( pi) r 
by substituting values we will get answer 
For example:
If radius is unknown and area is 440m2
2 TT r = 440
2 x 22 x r = 440 
        7    
44 r  = 440
7
44r= 440 x 7
44r = 3080
r = 3080/44
r = 140 m
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