#include <stdio.h>
#include <stdlib.h>
#include <math.h>


int main(void)
{
    float width, length, aREA, pERIMETER;
    int answer;

    printf("Please enter the width of the rectangle: ");
    scanf("%4f", &width);

    printf("\nPlease enter the length of the rectangle: ");
    scanf("%4f", &length);

    aREA = width * length;
    pERIMETER = 2*(width + length);

    printf("\nEnter 1 to calculate the area and 2 to calculate perimeter.\n");
    scanf(" %d", &answer);

    if(answer == 1){
        printf("\nThe area is %.1f.\n", aREA);
    }else if(answer == 2){
        printf("\nThe perimeter is %.1f.\n", pERIMETER);
    }else{
        printf("\nPlease enter 1 or 2.\n");
    }

    getch();

    return 0;
}