Question

Find the diameter and radius of the circle who circumference is as follows
A.12.56

Answer 1

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Answer 2

D=?

R=?

c= 12.56 unit (given)

as we know;

c= 2πR

=> 12.56 = 2*3.14*R

=> 6.28R = 12.56

•°• R = 12.56/6.28

= 2 unit

and D= 2R ( Formula)

•°• D= 2*2

= 4 unit