Day 1: Arithmetic Operators

 Objective

In this challenge, we practice using arithmetic operators. Check out the attached tutorial for resources.

Task

Complete the following functions in the editor below:

1. getArea(length, width): Calculate and return the area of a rectangle having sides  and .
2. getPerimeter(length, width): Calculate and return the perimeter of a rectangle having sides  and .

The values returned by these functions are printed to stdout by locked stub code in the editor.

Input Format

Constraints

•  and  are scaled to at most three decimal places.

Output Format

Sample Input 0

3
4.5

Sample Output 0

13.5
15

Explanation 0

The area of the rectangle is .
The perimeter of the rectangle is .

Solution

/**
*   Calculate the area of a rectangle.
*
*   length: The length of the rectangle.
*   width: The width of the rectangle.
*   
*	Return a number denoting the rectangle's area.
**/
function getArea(length, width) {
    let area;
    // Write your code here
    area = length * width;
    return area;
}

/**
*   Calculate the perimeter of a rectangle.
*	
*	length: The length of the rectangle.
*   width: The width of the rectangle.
*   
*	Return a number denoting the perimeter of a rectangle.
**/
function getPerimeter(length, width) {
    let perimeter;
    // Write your code here
    perimeter = 2*(length + width);
    
    return perimeter;
}