📜  求椭圆内切最大圆的面积

📅  最后修改于: 2021-10-23 09:05:44             🧑  作者: Mango

给定一个椭圆,长轴和短轴长度分别为 2a 和 2b。任务是找到可以内切的最大圆的面积。
例子:

Input : a = 5, b = 3
Output : 28.2743

Input : a = 10, b = 8
Output : 201.062

椭圆内圈

方法:内接于椭圆的圆的最大半径为椭圆的短轴。
所以,最大圆的面积 = π * b * b
下面是上述方法的实现:

C++
// CPP program to find
// the area of the circle
#include 
using namespace std;
#define pi 3.1415926
 
double areaCircle(double b)
{
    double area = pi * b * b;
    return area;
}
 
// Driver Code
int main()
{
    double a = 10, b = 8;
    cout << areaCircle(b);
    return 0;
}


Java
// Java Program to find the area
// of circle
 
class GFG
{
    static double areaCircle(double b)
    {
     
     
        // Area of the Reuleaux triangle
        double area = (double)3.1415926 * b * b;
        return area;
    }
     
    // Driver code
    public static void main(String args[])
    {
        float a = 10,b = 8;
        System.out.println(areaCircle(b)) ;
    }
}
 
// This code is contributed by mohit kumar 29


Python3
# Python3 program implementation of above approach
 
import math
 
# Function to return required answer
def areaCircle(b):
    area = math.pi * b * b
    return area
 
 
# Driver Code
a = 10
b = 8
print(areaCircle(b))
 
# This code is contributed by
# Sanjit_Prasad


C#
// C# Program to find the area
// of circle
using System;
 
class GFG
{
    static double areaCircle(double b)
    {
        // Area of the Reuleaux triangle
        double area = (double)3.1415926 * b * b;
        return area;
    }
     
    // Driver code
    public static void Main()
    {
        float b = 8;
        Console.WriteLine(areaCircle(b)) ;
    }
}
 
// This code is contributed by aishwarya.27


PHP


Javascript


输出:
201.062

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