C Program to Find Area of Recangle

#include<stdio.h>
int main()
{
    float length, width, area;
    printf("Enter length of rectangle: ");
    scanf("%f", &length);
    printf("Enter width of rectangle: ");
    scanf("%d", &width);

    area = length * width;

    printf("Area of rectangle = %f sq. units ", area);

    return 0;
}

Output

Enter length of rectangle: 40
Enter width of rectangle: 20
Area of rectangle = 800.00 sq. units