C Programs

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C Program: Volume of a Cone

Introduction (Cone Volume)

A cone is a 3D solid shape with a circular base that tapers smoothly to a single point called the apex.
Examples in real life include ice-cream cones, funnels, and traffic cones.

The volume of a cone represents the space enclosed within it.
The formula is:

Volume = 1/3 π r² h

where

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

C Program: Volume of a Cone

#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 cone: ");
    scanf("%f", &radius);
 
    printf("Enter the height of the cone: ");
    scanf("%f", &height);
 
    // Calculate volume
    volume = (PI * radius * radius * height) / 3.0;
 
    // Display result
    printf("Volume of Cone = %.2f\n", volume);
 
    return 0;
}

 
OUTPUT 1 :
Enter the radius of the cone: 3
Enter the height of the cone: 7
Volume of Cone = 65.97

OUTPUT 2 :
Enter the radius of the cone: 4.5
Enter the height of the cone: 10
Volume of Cone = 212.06

Explanation

1. The program takes radius and height as input.
2. Formula applied: (π × r² × h) ÷ 3.
3. PI is defined using #define.
4. The volume is displayed with two decimal places.