查找椭圆区域的程序

考虑到与长度a和半短轴的半长轴的椭圆轴线长度b。任务是找到椭圆的区域。
在数学中，椭圆是平面上由两个焦点围绕的曲线，因此到曲线上的每个点到两个焦点的距离之和是恒定的，或者我们可以说这是圆的推广。

与椭圆有关的要点：

• 中心：椭圆内的一个点，它是连接两个焦点的线段的中点。换句话说，它是短轴和长轴的交点。
• 长轴：椭圆的最长的直径称为长轴。
• 短轴：椭圆的最短直径称为短轴。
• 弦：连接椭圆上任意两个点的线段。
• 焦点：这是定义椭圆的两个固定点。
• 椭圆直肠：穿过椭圆的焦点并垂直于椭圆长轴的线段称为椭圆的椭圆直肠。

椭圆面积：给出椭圆面积的公式如下：

Area = 3.142 * a * b

其中a和b分别是半长轴和半短轴，而3.142是π的值。
例子：

Input : a = 5, b = 4
Output : 62.48

Input : a = 10, b = 5
Output : 157.1

C++

// C++ program to find area of
// an Ellipse.
#include
using namespace std;
 
// Function to find area of an
// ellipse.
void findArea( float a, float b)
{
    float Area;
     
    // formula to find the area
    // of an Ellipse.
    Area = 3.142 * a * b ;
     
    // Display the result
    cout << "Area: " << Area;
}
 
// Driver code
int main()
{
    float a = 5, b = 4;
     
    findArea(a, b);
     
    return 0;
}

Java

// Java program to find area of
// an Ellipse.
class GFG {
 
    // Function to find area of an
    // ellipse.
    static void findArea( float a, float b)
    {
        float Area;
         
        // formula to find the area
        // of an Ellipse.
        Area = (float)3.142 * a * b ;
         
        // Display the result
        System.out.println("Area: " + Area);
    }
     
    // Driver code
    public static void main (String[] args)
    {
        float a = 5, b = 4;
         
        findArea(a, b);
    }
}

Python3

# Python3 program to find
# area of an Ellipse.
 
# Function to find area
# of an ellipse.
def findArea(a, b):
     
    # formula to find the
    # area of an Ellipse.
    Area = 3.142 * a * b ;
     
    # Display the result
    print("Area:", round(Area, 2));
 
# Driver code
a = 5;
b = 4;
 
findArea(a, b);
 
# This code is contributed
# by mits

C#

// C# program to find area of
// an Ellipse.
using System;
class GFG
{
 
    // Function to find area
    // of an ellipse.
    static void findArea(float a,
                         float b)
    {
        float Area;
         
        // formula to find the
        // area of an Ellipse.
        Area = (float)3.142 * a * b ;
         
        // Display the result
        Console.WriteLine("Area: " +
                           Area);
    }
     
    // Driver code
    public static void Main ()
    {
        float a = 5, b = 4;
         
        findArea(a, b);
    }
}
 
// This code is contributed
// by anuj_67.

Javascript

 
// JavaScript program to find area of
// an Ellipse.   
 
// Function to find area of an ellipse.
    function findArea(a , b) {
        var Area;
 
        // formula to find the area
        // of an Ellipse.
        Area =  3.142 * a * b;
 
        // Display the result
        document.write("Area: " + Area.toFixed(2));
    }
 
    // Driver code
     
        var a = 5, b = 4;
 
        findArea(a, b);
 
// This code is contributed by aashish1995
 

输出：

Area: 62.84