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Find surface area of hemisphere

The surface area of a hemisphere is given by the formula:

A = 2πr^2

Where r is the radius of the hemisphere.

Here given code implementation process.

/*
  C Program 
  Find surface area of hemisphere
*/
#include <stdio.h>

#include <math.h>

//Calculate surface area of hemisphere by radius
void hemisphere_surface_area(double r)
{
	// Formula of hemisphere surface area
	// 2πr²
	printf("\nGiven radius : %lf", r);
	//Calculate surface of hemisphere
	double area = 2 * M_PI * (r * r);
	printf("\nSurface area of hemisphere : %lf\n", area);
}
int main()
{
	//Simple Case
	hemisphere_surface_area(14);
	hemisphere_surface_area(5);
	hemisphere_surface_area(8.2);
	return 0;
}

Output

Given radius : 14.000000
Surface area of hemisphere : 1231.504320

Given radius : 5.000000
Surface area of hemisphere : 157.079633

Given radius : 8.200000
Surface area of hemisphere : 422.481380
// Java Program
// Find surface area of Hemisphere
class Hemisphere
{
	//Calculate surface area of hemisphere by radius
	public void surface_area(double r)
	{
		// Formula of hemisphere surface area
		// 2πr²
		System.out.print("\nGiven radius : " + r);
		//Calculate surface of hemisphere
		double area = 2 * Math.PI * (r * r);
		System.out.print("\nSurface area of hemisphere : " + area + "\n");
	}
	public static void main(String[] args)
	{
		Hemisphere obj = new Hemisphere();
		//Simple Case
		obj.surface_area(14);
		obj.surface_area(5);
		obj.surface_area(8.2);
	}
}

Output

Given radius : 14.0
Surface area of hemisphere : 1231.5043202071988

Given radius : 5.0
Surface area of hemisphere : 157.07963267948966

Given radius : 8.2
Surface area of hemisphere : 422.48138005475533
// C++ Program
// Find surface area of Hemisphere
#include<iostream>
#include<math.h>
using namespace std;
class Hemisphere
{
	public:
		//Calculate surface area of hemisphere by radius
		void surface_area(double r)
		{
			cout << "\nGiven radius : " << r;
			// Formula of hemisphere surface area
			// 2πr²
			//Calculate surface of hemisphere
			double area = 2 * M_PI * (r * r);
			cout << "\nSurface area of hemisphere : " << area << "\n";
		}
};
int main()
{
	Hemisphere obj ;
	//Simple Case
	obj.surface_area(14);
	obj.surface_area(5);
	obj.surface_area(8.2);
	return 0;
}

Output

Given radius : 14
Surface area of hemisphere : 1231.5

Given radius : 5
Surface area of hemisphere : 157.08

Given radius : 8.2
Surface area of hemisphere : 422.481
// C# Program
// Find surface area of Hemisphere
using System;
class Hemisphere
{
	//Calculate surface area of hemisphere by radius
	public void surface_area(double r)
	{
		Console.Write("\nGiven radius : " + r);
		// Formula of hemisphere surface area
		// 2πr²
		//Calculate surface of hemisphere
		double area = 2 * Math.PI * (r * r);
		Console.Write("\nSurface area of hemisphere : " + area + "\n");
	}
	public static void Main(String[] args)
	{
		Hemisphere obj = new Hemisphere();
		//Simple Case
		obj.surface_area(14);
		obj.surface_area(5);
		obj.surface_area(8.2);
	}
}

Output

Given radius : 14
Surface area of hemisphere : 1231.5043202072

Given radius : 5
Surface area of hemisphere : 157.07963267949

Given radius : 8.2
Surface area of hemisphere : 422.481380054755
<?php
// Php Program
// Find surface area of Hemisphere
class Hemisphere
{
	//Calculate surface area of hemisphere by radius
	public	function surface_area($r)
	{
		echo "\nGiven radius : ". $r;
		// Formula of hemisphere surface area
		// 2πr²
		//Calculate surface of hemisphere
		$area = 2 * M_PI * ($r * $r);
		echo "\nSurface area of hemisphere : ". $area ."\n";
	}
}

function main()
{
	$obj = new Hemisphere();
	//Simple Case
	$obj->surface_area(14);
	$obj->surface_area(5);
	$obj->surface_area(8.2);
}
main();

Output

Given radius : 14
Surface area of hemisphere : 1231.5043202072

Given radius : 5
Surface area of hemisphere : 157.07963267949

Given radius : 8.2
Surface area of hemisphere : 422.48138005476
// Node Js Program
// Find surface area of Hemisphere
class Hemisphere
{
	//Calculate surface area of hemisphere by radius
	surface_area(r)
	{
		process.stdout.write("\nGiven radius : " + r);
		// Formula of hemisphere surface area
		// 2πr²
		//Calculate surface of hemisphere
		var area = 2 * Math.PI * (r * r);
		process.stdout.write("\nSurface area of hemisphere : " + area + "\n");
	}
}

function main()
{
	var obj = new Hemisphere();
	//Simple Case
	obj.surface_area(14);
	obj.surface_area(5);
	obj.surface_area(8.2);
}
main();

Output

Given radius : 14
Surface area of hemisphere : 1231.5043202071988

Given radius : 5
Surface area of hemisphere : 157.07963267948966

Given radius : 8.2
Surface area of hemisphere : 422.48138005475533
#  Python 3 Program
#  Find surface area of Hemisphere
import math
class Hemisphere :
	# Calculate surface area of hemisphere by radius
	def surface_area(self, r) :
		print("\nGiven radius : ", r, end = "")
		#  Formula of hemisphere surface area
		#  2πr²
		# Calculate surface of hemisphere
		area = 2 * math.pi * (r * r)
		print("\nSurface area of hemisphere : ", area ,"\n", end = "")
	

def main() :
	obj = Hemisphere()
	# Simple Case
	obj.surface_area(14)
	obj.surface_area(5)
	obj.surface_area(8.2)

if __name__ == "__main__": main()

Output

Given radius :  14
Surface area of hemisphere :  1231.5043202071988

Given radius :  5
Surface area of hemisphere :  157.07963267948966

Given radius :  8.2
Surface area of hemisphere :  422.48138005475533
#  Ruby Program
#  Find surface area of Hemisphere
class Hemisphere

	# Calculate surface area of hemisphere by radius
	def surface_area(r)
	
		print("\nGiven radius : ", r)
		#  Formula of hemisphere surface area
		#  2πr²
		# Calculate surface of hemisphere
		area = 2 * Math::PI * (r * r)
		print("\nSurface area of hemisphere : ", area ,"\n")
	end
end
def main()

	obj = Hemisphere.new()
	# Simple Case
	obj.surface_area(14)
	obj.surface_area(5)
	obj.surface_area(8.2)
end
main()

Output

Given radius : 14
Surface area of hemisphere : 1231.5043202071988

Given radius : 5
Surface area of hemisphere : 157.07963267948966

Given radius : 8.2
Surface area of hemisphere : 422.48138005475533

// Scala Program
// Find surface area of Hemisphere
class Hemisphere
{
	//Calculate surface area of hemisphere by radius
	def surface_area(r: Double): Unit = {
		print("\nGiven radius : " + r);
		// Formula of hemisphere surface area
		// 2πr²
		//Calculate surface of hemisphere
		var area: Double = 2 * Math.PI * (r * r);
		print("\nSurface area of hemisphere : " + area + "\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var obj: Hemisphere = new Hemisphere();
		//Simple Case
		obj.surface_area(14);
		obj.surface_area(5);
		obj.surface_area(8.2);
	}
}

Output

Given radius : 14.0
Surface area of hemisphere : 1231.5043202071988

Given radius : 5.0
Surface area of hemisphere : 157.07963267948966

Given radius : 8.2
Surface area of hemisphere : 422.48138005475533
// Swift Program
// Find surface area of Hemisphere
import Foundation
class Hemisphere
{
	//Calculate surface area of hemisphere by radius
	func surface_area(_ r: Double)
	{
		print("\nGiven radius : ", r, terminator: "");
		// Formula of hemisphere surface area
		// 2πr²
		//Calculate surface of hemisphere
		let area: Double = 2 * Double.pi * (r * r);
		print("\nSurface area of hemisphere : ", area ,"\n", terminator: "");
	}
}
func main()
{
	let obj: Hemisphere = Hemisphere();
	//Simple Case
	obj.surface_area(14);
	obj.surface_area(5);
	obj.surface_area(8.2);
}
main();

Output

Given radius :  14.0
Surface area of hemisphere :  1231.5043202072

Given radius :  5.0
Surface area of hemisphere :  157.07963267949

Given radius :  8.2
Surface area of hemisphere :  422.481380054755
Last updated on by Kalkicode




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