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  1. Prepare
  2. Tutorials
  3. 10 Days of Javascript
  4. Day 1: Let and Const
  5. Discussions

Day 1: Let and Const

  • vyoma_patel
     + 0 comments
    function main() {
    // Write your code here. Read input using 'readLine()' and print output using 'console.log()'.
    const PI = Math.PI
    let r = parseFloat(readLine());
    
    // Print the area of the circle:
    let area;
    area = PI * r * r
    console.log(area)
    
    // Print the perimeter of the circle:
    let perimeter;
    perimeter = 2 * PI * r
    console.log(perimeter)