Question

How to calculate area, diameter and circumference of circle in JavaScript

Answer 1

const radius = 3;
const PI = Math.PI;
    
const area = PI * radius * radius;
console.log("Area = " +  area.toFixed(2));
    
const diameter = 2 * radius;
console.log("Diameter = " +  diameter.toFixed(2));
    
const circumference = 2 * PI * radius;
console.log("Circumference = " +  circumference.toFixed(2));
 
     
     
/*
run:
       
Area = 28.27
Diameter = 6.00
Circumference = 18.85
       
*/

 

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