Language C
Description It calculates tha area and the perimeter of a rectangle getting the height and the width.
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#include <stdio.h>
#include <stdlib.h>

int main (void)
{
    float area, height, perimeter, width;
    printf ("Enter the value of height: ");
    scanf ("%f", &height);
    (void) getchar ();
    printf ("Enter the value of width: ");
    scanf ("%f", &width);
    (void) getchar ();
    area=height*width;
    perimeter=height*2+width*2;
    printf ("Value of area: %g\n", area);
    printf ("Value of perimeter: %g\n", perimeter);
    putchar ('\n');
    system ("pause");
    return EXIT_SUCCESS;
}