Calculate volume and surface area of a hemisphere.
Hemisphere :
In geometry, it is an exact half of a sphere. We can find many of the real life examples of the hemispheres such as our planet Earth can be divided into two hemisphere the southern & northern hemispheres.
Volume of Hemisphere : Volume of a Hemisphere is nothing but the amount of space occupied by the hemisphere. It is also defined as the quantity of three dimensional space enclosed by the boundary of the Hemisphere.
Surface area : The number of square units that will exactly cover the surface of a hemisphere.
surface area = 
volume = 
Examples :
Input : Radius = 7
Output :
Volume = 718.378
Surface Area = 307.876Input : Radius = 11
Output :
Volume = 2787.64
Surface Area = 760.265
C++
// CPP Program to calculate volume and // and surface area of a Hemisphere. #include <bits/stdc++.h> using namespace std; // Initializing value of pi #define pi 3.141592653589793 // Function to calculate volume void volume(float r) { float volume = float(2 * pi * pow(r, 3)) / float(3); cout << "Volume = " << volume << endl; } // Function to calculate surface area void surface_area(float r) { float s_area = 2 * pi * pow(r, 2); cout << "Surface Area = " << s_area << endl; } // Driver program int main() { float r = 11; volume(r); surface_area(r); return 0; } |
Java
// Java Program to calculate volume and // and surface area of a Hemisphere. import java.util.*; import java.lang.*; public class GfG{ // Initializing value of pi private static final float pi = (float) 3.141592653589793; // Function to calculate volume public static void volume(float r) { float volume = (float)(2 * pi *(float) Math.pow(r, 3)) / (float)(3); System.out.println("Volume = " + volume); } // Function to calculate surface area public static void surface_area(float r) { float s_area = (float)2 * pi * (float)Math.pow(r, 2); System.out.println("Surface Area = " + s_area); } // Driver function public static void main(String argc[]){ float r = 11; volume(r); surface_area(r); } } /* This code is contributed by Sagar Shukla */ |
Python
# Python code Program to calculate volume and # and surface area of a Hemisphere. import math # Function to calculate volume def volume(r): volume = 2 * math.pi * math.pow(r, 3) / 3 print("Volume = ", '%.4f' %volume) # Function to calculate surface area def surface_area(r): s_area = 2 * math.pi * math.pow(r, 2) print("Surface Area = ", '%.4f' %s_area) # Driver code r = 11volume(r) surface_area(r) |
C#
// C# Program to calculate volume and // and surface area of a Hemisphere. using System; public class GfG{ // Initializing value of pi private static float pi = (float) 3.141592653589793; // Function to calculate volume public static void volume(float r) { float volume = (float)(2 * pi *(float) Math.Pow(r, 3)) / (float)(3); Console.WriteLine("Volume = " + volume); } // Function to calculate surface area public static void surface_area(float r) { float s_area = (float)2 * pi * (float)Math.Pow(r, 2); Console.WriteLine("Surface Area = " + s_area); } // Driver function public static void Main() { float r = 11; volume(r); surface_area(r); } } /* This code is contributed by vt_m */ |
PHP
<?php // PHP Program to calculate volume and // and surface area of a Hemisphere. // Initializing value of pi & // Function to calculate volume function volume($r) { $pi =3.141592653589793; $volume = (2 * $pi * pow($r, 3)) /(3); echo("Volume = " ); echo($volume); echo("\n"); } // Function to calculate // surface area function surface_area($r) { $pi = 3.141592653589793; $s_area = 2 * $pi * pow($r, 2); echo( "Surface Area = "); echo($s_area) ; } // Driver code $r = 11; volume($r); surface_area($r); // This code is contributed by vt_m ?> |
Javascript
<script> // javascript Program to calculate volume and // and surface area of a Hemisphere. // Initializing value of pi const pi = 3.141592653589793; // Function to calculate volume function volume(r) { let volume = (2 * pi * Math.pow(r, 3)) / (3); document.write("Volume = " + volume.toFixed(2)+ "<br/>"); } // Function to calculate surface area function surface_area(r) { let s_area = 2 * pi * Math.pow(r, 2); document.write("Surface Area = " + s_area.toFixed(3) +"<br/>"); } // Driver program let r = 11; volume(r); surface_area(r); // This code is contributed by aashish1995 </script> |
Output
Volume = 2787.64 Surface Area = 760.265
Time complexity: O(1), as calculating square and cube using pow function takes constant operations.
Auxiliary space: O(1)
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