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C program to calculate the surface area, volume of Cone

Here, we are going to learn how to calculate the surface area, volume of Cone using C program?
Submitted by Nidhi, on August 10, 2021

Problem statement

Read the height and radius of a Cone from the user, and then calculate the surface area and volume of Cone.

Surface area of Cone:

To calculate the surface area of Cone (Right Circular Cone), the formula is:

Volume of Cone:

To calculate the volume of Cone (Right Circular Cone), the formula is:

Where,

r : Radius of the Cone
h : Height of the Cone

C program to calculate the surface area, volume of Cone

The source code to calculate the surface area, volume of the Cone is given below. The given program is compiled and executed using GCC compile on UBUNTU 18.04 OS successfully.

// C program to find the surface Area and
// volume of Cone

#include <stdio.h>
#include <math.h>

int main()
{
    float height = 0;
    float radius = 0;

    float volume = 0;
    float area = 0;

    printf("Enter the height: ");
    scanf("%f", &height);

    printf("Enter the radius: ");
    scanf("%f", &radius);

    volume = (1.0 / 3) * (3.14) * radius * radius * height;
    area = (3.14) * radius * (radius + sqrt(radius * radius + height * height));

    printf("Volume of Cone 	    : %f\n", volume);
    printf("Surface area of Cone: %f\n", area);

    return 0;
}

Output

RUN 1:
Enter the height: 12.3
Enter the radius: 4
Volume of Cone      : 205.984009
Surface area of Cone: 212.691849

RUN 2:
Enter the height: 1.2
Enter the radius: 3.4
Volume of Cone      : 14.519361
Surface area of Cone: 74.791267

RUN 3:
Enter the height: 10
Enter the radius: 6
Volume of Cone      : 376.799988
Surface area of Cone: 332.750275