Given an number d which is length of diagonal of a square, find its area.
Examples:
Input : d = 10 Output : Area = 50 Input : d = 12.2 Output : Area = 74.42
Area of a square can be computed as (d * d)/2. Please see below image for details.
C++
// C++ Program to find the area of square // when its diagonal is given. #include <bits/stdc++.h> using namespace std; // Returns area of square from given // diagonal double findArea(double d) { return (d * d) / 2.0; } // Driver Code int main() { double d = 10; cout << (findArea(d)); return 0; } // This code is contributed by // Shivi_Aggarwal |
C
// C Program to find the area of square // when its diagonal is given. #include <stdio.h> // Returns area of square from given // diagonal double findArea(double d) { return (d * d) / 2; } // Driver function. int main() { double d = 10; printf("%.2f", findArea(d)); return 0; } |
Java
// Java Program to find the area of square // when its diagonal is given. class GFG { // Returns area of square from given // diagonal static double findArea(double d) { return (d * d) / 2; } // Driver code public static void main (String[] args) { double d = 10; System.out.println(findArea(d)); } } // This code is contributed by Anant Agarwal. |
Python3
# Python3 Program to find # the area of square # when its diagonal is given. # Returns area of square from given # diagonal def findArea(d): return (d * d) / 2 # Driver function. d = 10print("%.2f" % findArea(d)) # This code is contributed by # Smitha Dinesh Semwal |
C#
// C# Program to find the area of square // when its diagonal is given. using System; class GFG { // Returns area of square from given // diagonal static double findArea(double d) { return (d * d) / 2; } // Driver code public static void Main () { double d = 10; Console.WriteLine(findArea(d)); } } // This code is contributed by vt_m. |
PHP
<?php // PHP Program to find the area of // square when its diagonal is given. // Returns area of square // from given diagonal function findArea( $d) { return ($d * $d) / 2; } // Driver Code $d = 10; echo( findArea($d)); // This code is contributed by vt_m. ?> |
Javascript
<script> // JavaScript Program to find the area of square // when its diagonal is given. // Returns area of square from given // diagonal function findArea(d) { return (d * d) / 2; } // Driver code let d = 10; document.write(findArea(d)); </script> |
Output:
50.00
Time Complexity: O(1)
Auxiliary Space: O(1)
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