Given an integer **C** which is the length of the hypotenuse of a right angled triangle of a circumcircle passing through the centre of the circumcircle. The task is to find the area of the circumcircle.

**Examples:**

Input:C = 8Output:50.26Input:C = 10Output:78.53

**Approach:** Since the hypotenuse **C** passes through the center of the circle, the radius of the circle will be **C / 2**.

And we know that the area of a circle is **PI * r ^{2}** where

**PI = 22 / 7**and

**r**is the radius of the circle.

Hence the area of the circumcircle will be

**PI * (C / 2)**i.e.

^{2}**PI * C**.

^{2}/ 4Below is the implementation of the above approach:

## C++

`// C++ program to find the area of Cicumscribed` `// circle of right angled triangle` `#include <bits/stdc++.h>` `#define PI 3.14159265` `using` `namespace` `std;` `// Function to find area of` `// circumscribed circle` `float` `area_circumscribed(` `float` `c)` `{` ` ` `return` `(c * c * (PI / 4));` `}` `// Driver code` `int` `main()` `{` ` ` `float` `c = 8;` ` ` `cout << area_circumscribed(c);` ` ` `return` `0;` `}` `// This code is contributed by Shivi_Aggarwal` |

## C

`// C program to find the area of Cicumscribed` `// circle of right angled triangle` `#include <stdio.h>` `#define PI 3.14159265` `// Function to find area of` `// circumscribed circle` `float` `area_circumscribed(` `float` `c)` `{` ` ` `return` `(c * c * (PI / 4));` `}` `// Driver code` `int` `main()` `{` ` ` `float` `c = 8;` ` ` `printf` `(` `"%f"` `,` ` ` `area_circumscribed(c));` ` ` `return` `0;` `}` |

## Java

`// Java code to find the area of circumscribed` `// circle of right angled triangle` `import` `java.lang.*;` `class` `GFG {` ` ` `static` `double` `PI = ` `3.14159265` `;` ` ` `// Function to find the area of` ` ` `// circumscribed circle` ` ` `public` `static` `double` `area_cicumscribed(` `double` `c)` ` ` `{` ` ` `return` `(c * c * (PI / ` `4` `));` ` ` `}` ` ` `// Driver code` ` ` `public` `static` `void` `main(String[] args)` ` ` `{` ` ` `double` `c = ` `8.0` `;` ` ` `System.out.println(area_cicumscribed(c));` ` ` `}` `}` |

## Python3

`# Python3 code to find the area of circumscribed` `# circle of right angled triangle` `PI ` `=` `3.14159265` ` ` `# Function to find the area of` `# circumscribed circle` `def` `area_cicumscribed(c):` ` ` `return` `(c ` `*` `c ` `*` `(PI ` `/` `4` `))` ` ` `# Driver code` `c ` `=` `8.0` `print` `(area_cicumscribed(c))` |

## C#

`// C# code to find the area of` `// circumscribed circle` `// of right angled triangle` `using` `System;` `class` `GFG {` ` ` `static` `double` `PI = 3.14159265;` ` ` `// Function to find the area of` ` ` `// circumscribed circle` ` ` `public` `static` `double` `area_cicumscribed(` `double` `c)` ` ` `{` ` ` `return` `(c * c * (PI / 4));` ` ` `}` ` ` `// Driver code` ` ` `public` `static` `void` `Main()` ` ` `{` ` ` `double` `c = 8.0;` ` ` `Console.Write(area_cicumscribed(c));` ` ` `}` `}` |

## PHP

`<?php` `// PHP program to find the` `// area of Cicumscribed` `// circle of right angled triangle` `$PI` `= 3.14159265;` `// Function to find area of` `// circumscribed circle` `function` `area_circumscribed(` `$c` `)` `{` ` ` `global` `$PI` `;` ` ` `return` `(` `$c` `* ` `$c` `* (` `$PI` `/ 4));` `}` `// Driver code` `$c` `= 8;` `echo` `(area_circumscribed(` `$c` `));` `?>` |

## Javascript

`<script>` `// javascript code to find the area of circumscribed` `// circle of right angled triangle` ` ` `let PI = 3.14159265;` ` ` `// Function to find the area of` ` ` `// circumscribed circle` ` ` `function` `area_cicumscribed(c) {` ` ` `return` `(c * c * (PI / 4));` ` ` `}` ` ` `// Driver code` ` ` `var` `c = 8.0;` ` ` `document.write(area_cicumscribed(c).toFixed(6));` `// This code is contributed by Rajput-Ji` `</script>` |

**Output:**

50.265484

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