Question

How to calculate the area of an equilateral triangle in PHP

Answer 1

$a = 5;
$equilateral_triangle_area = sqrt(3) / 4 * ($a * $a);  
   
echo "Equilateral Triangle Area = " . $equilateral_triangle_area; 

 
 
 
 
/*
run:
     
Equilateral Triangle Area = 10.825317547305
 
*/

 

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