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C Program: Volume of a Cylinder

C Program: Volume of a Cylinder

Introduction (Cylinder Volume)

A cylinder is a 3D solid shape with two parallel circular bases connected by a curved surface.
Examples in real life include water tanks, cans, and pipes.

The volume of a cylinder represents the total space it encloses.
The formula is:

Volume = π r² h

where

• r = radius of the circular base
• h = height of the cylinder
• π (pi) ≈ 3.14159

C Program: Volume of a Cylinder

#include <stdio.h>
#define PI 3.14159   // Define constant PI
 
int main() {
    float radius, height, volume;
 
    // Input radius and height
    printf("Enter the radius of the cylinder: ");
    scanf("%f", &radius);
 
    printf("Enter the height of the cylinder: ");
    scanf("%f", &height);
 
    // Calculate volume
    volume = PI * radius * radius * height;
 
    // Display result
    printf("Volume of Cylinder = %.2f\n", volume);
 
    return 0;
}
 

 
OUTPUT 1 :
Enter the radius of the cylinder: 3
Enter the height of the cylinder: 10
Volume of Cylinder = 282.74

OUTPUT 2 :
Enter the radius of the cylinder: 4.5
Enter the height of the cylinder: 12
Volume of Cylinder = 763.41

Explanation

1. The program asks for radius and height of the cylinder.
2. Formula applied: π × r² × h.
3. PI is defined using #define.
4. The calculated volume is displayed with two decimal places.