1. Find the Area of Circle
/* C Program to Calculate Area Of a Circle using Radius */
#include<stdio.h>
#define PI 3.14
main()
{
float radius, area, circumference;
printf("\n Please Enter the radius of a circle\n");
scanf("%f",&radius);
area = PI*radius*radius;
circumference = 2* PI*radius;
printf("\n Area Of a Circle = %.2f\n", area);
printf("\n Circumference Of a Circle = %.2f\n", circumference);
return 0;
}
Output :-
Please Enter the radius of a circle :
25
Area Of a Circle = 1962.50
Circumference Of a Circle = 157.00
2. Find the Area of Triangle
/* C Program to find Area of a Triangle and Perimeter of a Triangle */
#include<stdio.h>
#include<math.h>
int main()
{
float a, b, c, Perimeter, s, Area;
printf("\nPlease Enter three sides of triangle\n");
scanf("%f%f%f",&a,&b,&c);
Perimeter = a+b+c;
s = (a+b+c)/2;
Area = sqrt(s*(s-a)*(s-b)*(s-c));
printf("\n Perimeter of Traiangle = %.2f\n", Perimeter);
printf("\n Semi Perimeter of Traiangle = %.2f\n",s);
printf("\n Area of triangle = %.2f\n",Area);
return 0;
}
Output :-
Please Enter three sides of triangle :
25
25
25
Perimeter of Traiangle = 75.00
Semi Perimeter of Traiangle = 37.50
Area of triangle = 270.63
3. Find the Area of Triangle using Base and Height
/* C Program to find Area Of a Triangle using base and height */
#include<stdio.h>
int main()
{
float base, height, area;
printf("\n Please Enter the Base of a Triangle : ");
scanf("%f", &base);
printf("\n Please Enter the Height of a Triangle : ");
scanf("%f", &height);
area = (base * height) / 2;
printf("\n The Area of a Triangle using Base and Height = %.2f\n", area);
return 0;
}
Output :-
Please Enter the Base of a Triangle : 25
Please Enter the Height of a Triangle : 25
The Area of a Triangle using Base and Height = 312.50
4. Find the Area of Rectangle
/* C Program to Calculate Area of a Rectangle and Perimeter of a Rectangle */
#include<stdio.h>
int main()
{
float width, height, Area, Perimeter;
printf ("\n Please Enter the Width and Height of the rectangle \n");
scanf (" %f %f ",&width, &height);
Area = width * height;
Perimeter = 2 *(width + height);
printf("\n Area of a rectangle is: %.2f", Area);
printf("\n Perimeter of a rectangle is: %.2f", Perimeter);
return 0;
}
Output :-
Please Enter the Width and Height of the rectangle :
30
25
Area of a rectangle is: 750.00
Perimeter of a rectangle is: 110.00
5. Find the Area of Right Angled Triangle
/* C Program to find Area of a Right Angled Triangle Example */
#include<stdio.h>
#include<math.h>
int main()
{
float width, height, c, Area, Perimeter;
printf("\n Please Enter height and width of the right angled triangle\n");
scanf("%f%f",&width, &height);
Area = 0.5 * width * height;
c = sqrt((width*width) + (height*height));
Perimeter = width + height + c;
printf("\n Area of right angled triangle is: %.2f\n",Area);
printf("\n Other side of right angled triangle is: %.2f\n",c);
printf("\n Perimeter of right angled triangle is: %.2f\n", Perimeter);
return 0;
}
Output :-
Please Enter height and width of the right angled triangle
25
25
Area of right angled triangle is: 312.50
Other side of right angled triangle is: 35.36
Perimeter of right angled triangle is: 85.36
6. Find Volume and Surface area of Sphere
/* C Program to find Volume and Surface Area of Sphere */
#include <stdio.h>
#define PI 3.14
int main()
{
float radius, sa,Volume;
printf("\n Please Enter the radius of a Sphere \n");
scanf("%f", &radius);
sa = 4 * PI * radius * radius;
Volume = (4.0 / 3) * PI * radius * radius * radius;
printf("\n The Surface area of a Sphere = %.2f", sa);
printf("\n The Volume of a Sphere = %.2f", Volume);
return 0;
}
Output :-
Please Enter the radius of a Sphere:
25
The Surface area of a Sphere = 7850.00
The Volume of a Sphere = 65416.67
7. Find Volume and Surface area of Cube
/* C Program to find Volume and Surface Area of a Cube */
#include<stdio.h>
int main()
{
float l, SA,Volume, LSA;
printf("\n Please Enter Length of any side of a Cube: \n");
scanf(" %f ", &l);
SA = 6 * (l * l);
Volume = l * l * l;
LSA = 4 * (l * l);
printf("\n Surface Area of Cube = %.2f", SA);
printf("\n Volume of cube = %.2f", Volume);
printf("\n Lateral Surface Area of Cube = %.2f", LSA);
return 0;
}
Output :-
Please Enter Length of any side of a Cube:
25
Surface Area of Cube = 3750.00
Volume of cube = 15625.00
Lateral Surface Area of Cube = 2500.00
8. Find the Volume and Surface area of Cylinder
/* C Program to find Volume and Surface Area of a Cylinder */
#include<stdio.h>
#include<math.h>
int main()
{
float radius, height;
// L = Lateral Surface Area of a Cylinder, T = Top Surface Area
float sa,Volume, L, T;
printf("\n Please Enter the radius and height of a cylinder \n");
scanf("%f %f", &radius, &height);
sa = 2 * M_PI * radius * (radius + height);
Volume = M_PI * radius * radius * height;
L = 2 * M_PI * radius * height;
T = M_PI * radius * radius;
printf("\n Surface Area of a cylinder = %.2f", sa);
printf("\n Volume of a Cylinder = %.2f", Volume);
printf("\n Lateral Surface Area of a cylinder = %.2f", L);
printf("\n Top OR Bottom Surface Area of a cylinder = %.2f", T);
return 0;
}
Output :-
Please Enter the radius and height of a cylinder:
25
25
Surface Area of a cylinder = 7853.98
Volume of a Cylinder = 49087.39
Lateral Surface Area of a cylinder = 3926.99
Top OR Bottom Surface Area of a cylinder = 1963.50
9. Find the Volume and Surface area of Cone
/* C Program to find Volume and Surface Area of a Cone */
#include <stdio.h>
#include <math.h>
int main()
{
float radius, height;
float Volume, SA, l, LSA;
printf("\n Please Enter Radius and Height of a Cone :\n");
scanf("%f %f", &radius, &height);
l = sqrt(radius * radius + height * height);
SA = M_PI * radius * (radius + l);
Volume = (1.0/3) * M_PI * radius * radius * height;
LSA = M_PI * radius * l;
printf("\n Length of a Side (Slant)of a Cone = %.2f", l);
printf("\n Surface Area of a Cone = %.2f", SA);
printf("\n Volume of a Cone = %.2f", Volume);
printf("\n Lateral Surface Area of a Cone = %.2f", LSA);
return 0;
}
Output :-
Please Enter Radius and Height of a Cone :
25
25
Length of a Side (Slant)of a Cone = 35.36
Surface Area of a Cone = 4740.30
Volume of a Cone = 16362.46
Lateral Surface Area of a Cone = 2776.80
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