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Assiut University Training - Newcomers
Area of a Circle
Area of a Circle
rezaul karim
#
include
<
stdio.h
>
int
main
()
{
double
R
,
pi
,
area
;
scanf
(
"
%lf
"
,
&
R
);
pi
=
3.141592653
;
area
=
pi
*
R
*
R
;
printf
(
"
%.9lf
\n"
,
area
);
return
0
;
}
Output
10
314.159265300
Assiut University Training - Newcomers
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