Question

How to find area of isosceles triangle in JavaScript

Answer 1

const a = 5; // length of two equal sides
const base = 8;
    
const area = (1 / 2.0) * base * Math.sqrt((a * a) - ((base * base) / 4));
         
console.log("Area of Isosceles Triangle = " + area);
    
 
 
  
    
/*
run:
    
"Area of Isosceles Triangle = 12"
    
*/

 

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Answer 2

const h = 3;
const base = 8;
    
const area = (1 / 2.0) * base * h;
         
console.log("Area of Isosceles Triangle = " + area);
    
 
 
  
    
/*
run:
    
"Area of Isosceles Triangle = 12"
    
*/

 

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