正方形内最大的三角形
原文:https://www . geesforgeks . org/big-reuleaux-triangle-in-a-sqaure/
给定一个整数和一个，这是一个正方形的边，任务是找到最大的勒乌三角，它可以被内接在里面。
示例:
输入:a = 6 T3】输出: 25.3717
输入:a = 8 T3】输出: 45.1053
下面是上述方法的实现:
C++
// C++ Program to find the area
// of the biggest Reuleaux triangle
// that can be inscribed within a square
#include <bits/stdc++.h>
using namespace std;
// Function to find the Area
// of the Reuleaux triangle
float ReuleauxArea(float a)
{
// Side cannot be negative
if (a < 0)
return -1;
// Area of the Reuleaux triangle
float A = 0.70477 * pow(a, 2);
return A;
}
// Driver code
int main()
{
float a = 6;
cout << ReuleauxArea(a) << endl;
return 0;
}
Java 语言(一种计算机语言，尤用于创建网站)
// Java Program to find the area
// of the biggest Reuleaux triangle
// that can be inscribed within a square
import java.lang.Math;
class cfg
{
// Function to find the Area
// of the Reuleaux triangle
static double ReuleauxArea(double a)
{
// Side cannot be negative
if (a < 0)
return -1;
// Area of the Reuleaux triangle
double A = 0.70477 * Math.pow(a, 2);
return A;
}
// Driver code
public static void main(String[] args)
{
double a= 6;
System.out.println(ReuleauxArea(a) );
}
}//This code is contributed by Mukul Singh.
Python 3
# Python3 Program to find the area
# of the biggest Reuleaux triangle
# that can be inscribed within a square
# Function to find the Area
# of the Reuleaux triangle
def ReuleauxArea(a) :
# Side cannot be negative
if (a < 0) :
return -1
# Area of the Reuleaux triangle
A = 0.70477 * pow(a, 2);
return A
# Driver code
if __name__ == "__main__" :
a = 6
print(ReuleauxArea(a))
# This code is contributed by Ryuga
C
// C# program to find area of the
//biggest Reuleaux triangle that can be inscribed
//within a square
using System;
class GFG {
// Function to find the area
// of the reuleaux triangle
static double reuleauxArea(double a)
{
//Side cannot be negative
if (a<0)
return -1;
// Area of the reauleaux triangle
double A=0.70477*Math.Pow(a,2);
return A;
}
// Driver code
static public void Main()
{
double a= 6;
Console.WriteLine(reuleauxArea( a));
}
}
//This code is contributed by Mohit kumar 29
服务器端编程语言（Professional Hypertext Preprocessor 的缩写）
<?php
// PHP Program to find the area of the
// biggest Reuleaux triangle that can
// be inscribed within a square
// Function to find the Area
// of the Reuleaux triangle
function ReuleauxArea($a)
{
// Side cannot be negative
if ($a < 0)
return -1;
// Area of the Reuleaux triangle
$A = 0.70477 * pow($a, 2);
return $A;
}
// Driver code
$a = 6;
echo ReuleauxArea($a) . "\n";
// This code is contributed by ita_c
?>
java 描述语言
<script>
// javascript Program to find the area
// of the biggest Reuleaux triangle
// that can be inscribed within a square
// Function to find the Area
// of the Reuleaux triangle
function ReuleauxArea(a)
{
// Side cannot be negative
if (a < 0)
return -1;
// Area of the Reuleaux triangle
var A = 0.70477 * Math.pow(a, 2);
return A;
}
// Driver code
var a= 6;
document.write(ReuleauxArea(a) );
// This code is contributed by Princi Singh
</script>
Output:
25.3717
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