Question

How to calculate the area, diameter, and circumference of a circle in TypeScript

Answer 1

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

 

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