This C Program calculates the volume and surface area of cone. This program is used to find the the volume and surface area of cone. The formula used in this program are Surface_area = Pi * r * (r + sqrt(r2 + h2)), Volume = 1 / 3 * Pi * r2 * h where r is the radius and h is the height of the cone & Pi = 22/7.

Here is source code of the C Program to Find the volume and surface area of cone. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

`/*`

`* C Program to Find the volume and surface area of cone`

`*/`

`#include <stdio.h>`

`#include <math.h>`

int main()

`{`

float radius, height;

float surface_area, volume;

printf("Enter value of radius and height of a cone :\n ");

scanf("%f%f", &radius, &height);

surface_area = (22 / 7) * radius * (radius + sqrt(radius * radius + height * height));

volume = (1.0/3) * (22 / 7) * radius * radius * height;

printf("Surface area of cone is: %.3f", surface_area);

printf("\n Volume of cone is : %.3f", volume);

return 0;

`}`

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Output: $ cc pgm31.c -lm $ a.out Enter value of radius and height of a cone : 6 9 Surface area of cone is: 302.700 Volume of cone is : 324.000

**Sanfoundry Global Education & Learning Series – 1000 C Programs.**

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If you wish to look at other example programs on Mathematical Functions, go to C Programming Examples on Mathematical Functions. If you wish to look at programming examples on all topics, go to C Programming Examples.