📜  内六角形的最大三角形的面积

📅  最后修改于: 2021-04-29 09:36:49             🧑  作者: Mango

这里给出的是一个正六边形,边长为a的,任务是找到可以在它被列入最大的三角形的面积。
例子:

Input:  a = 6
Output: area = 46.7654

Input: a = 8
Output: area = 83.1384

方法

下面是上述方法的实现:

C++
// C++ Program to find the biggest triangle
// which can be inscribed within the hexagon
#include 
using namespace std;
 
// Function to find the area
// of the triangle
float trianglearea(float a)
{
 
    // side cannot be negative
    if (a < 0)
        return -1;
 
    // area of the triangle
    float area = (3 * sqrt(3) * pow(a, 2)) / 4;
 
    return area;
}
 
// Driver code
int main()
{
    float a = 6;
    cout << trianglearea(a) << endl;
 
    return 0;
}


Java
// Java Program to find the biggest triangle
// which can be inscribed within the hexagon
 
import java.io.*;
 
class GFG {
     
// Function to find the area
// of the triangle
static double trianglearea(double a)
{
 
    // side cannot be negative
    if (a < 0)
        return -1;
 
    // area of the triangle
    double area = (3 * Math.sqrt(3) * Math.pow(a, 2)) / 4;
 
    return area;
}
 
    public static void main (String[] args) {
        double a = 6;
        System.out.println (trianglearea(a));
 
    }
//This Code is contributed by Sachin..
     
}


Python3
# Python3 Program to find the biggest triangle
# which can be inscribed within the hexagon
import math
 
# Function to find the area
# of the triangle
def trianglearea(a):
 
    # side cannot be negative
    if (a < 0):
        return -1;
 
    # area of the triangle
    area = (3 * math.sqrt(3) * math.pow(a, 2)) / 4;
 
    return area;
 
# Driver code
a = 6;
print(trianglearea(a))
 
# This code is contributed
# by Akanksha Rai


C#
// C# Program to find the biggest triangle
// which can be inscribed within the hexagon
 
using System;
 
class GFG {
     
// Function to find the area
// of the triangle
static double trianglearea(double a)
{
 
    // side cannot be negative
    if (a < 0)
        return -1;
 
    // area of the triangle
    double area = (3 * Math.Sqrt(3) * Math.Pow(a, 2)) / 4;
 
    return Math.Round(area,4);
}
 
    public static void Main () {
        double a = 6;
        Console.WriteLine(trianglearea(a));
 
    }
        // This code is contributed by Ryuga
 
}


PHP


Javascript


输出:
46.7654