Question

C Programming

1. Complete the following function by writing C statements that correspond to the description in

each comment in the code.

            #include <stdio.h>

intmain()

{

// Declare a floating point variable to store a rectangle’s width

// Declare a floating point variable to store a rectangle’s length

// Declare a third floating point variable that will store the area of the rectangle.

// Prompt the user to enter a width for the rectangle.

// Get the user’s input, and store it in your previously declared variable for width

// Prompt the user to enter a length for the rectangle.

// Get the user’s input, and store it in your previously declared variable for length

// Using an if statement, print out “Error: invalid side length” if either length or width are

// less than or equal to 0.

// Else…

// Calculate the area of the rectangle as a product of length times width, and store the

// result in your variable for storing the area.

                        // Print "The area of a rectangle with sides <width> and <length> is <area>” to the screen.

                        // Replace <width>, <length>, and <area> with the value of the associate variables.

                        // All floating point values should be printed out with 1 decimal place of precision.

return0;

}

Answer 1

#include <stdio.h>

int main() {
// Declare a floating point variable to store a rectangle’s width
    float width;
// Declare a floating point variable to store a rectangle’s length
    float length;
// Declare a third floating point variable that will store the area of the rectangle.
    float area;
// Prompt the user to enter a width for the rectangle.
    printf("Enter width of rectangle: ");
// Get the user’s input, and store it in your previously declared variable for width
    scanf("%f", &width);
// Prompt the user to enter a length for the rectangle.
    printf("Enter length of rectangle: ");
// Get the user’s input, and store it in your previously declared variable for length
    scanf("%f", &length);
// Using an if statement, print out “Error: invalid side length” if either length or width are
// less than or equal to 0.
    if (length <= 0 || width <= 0) {
        printf("Error: invalid side length\n");
    } else {
// Else…
// Calculate the area of the rectangle as a product of length times width, and store the
        area = length * width;
        // result in your variable for storing the area.
        // Print "The area of a rectangle with sides <width> and <length> is <area>” to the screen.
        printf("The area of a rectangle with sides %.1f and %.1f is %.1f\n", width, length, area);
        // Replace <width>, <length>, and <area> with the value of the associate variables.
        // All floating point values should be printed out with 1 decimal place of precision.
    }
    return 0;
}