How To Write a C Program To Calculate Area of Circle using Pointer in C Programming Language ?
Solution For C Program To Calculate Area of Circle using Pointer:
#include<stdio.h> void areaperi ( int r, float *a, float *p ) { *a = 3.14 * r * r ; *p = 2 * 3.14 * r ; } void main( ) { int radius ; float area, perimeter ; printf ( "Enter radius of a circle " ) ; scanf ( "%d", &radius ) ; areaperi ( radius, &area, &perimeter ) ; printf ( "Area = %f", area ) ; printf ( "Perimeter = %f", perimeter ) ; }Output:
Enter radius of a circle 5 Area = 78.500000 Perimeter = 31.400000
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