C program to find Area Of SemiCircle; Through this tutorial, we will learn how to find or calculate area Of semiCircle using standard formula, function and pointer in c programs.
Programs and Algorithm to Find Area Of SemiCircle
Use the following algorithm and programs to find or calculate area Of semiCircle using standard formula, function, and pointer in c:
- Algorithm to Find Area Of SemiCircle
- C Program to Find Area Of SemiCircle using Standard Formula
- C Program to Find Area Of SemiCircle using Function
- C Program to Find Area Of SemiCircle using Pointer
Algorithm to Find Area Of SemiCircle
Use the following algorithm to write a program to find the area Of semiCircle; as follows:
- Take input radious. Store it in variable.
- Calculate area of semicircle using area=(22*r*r)/(2*7);
- Finally, print the value of area of semicircle.
C Program to Find Area Of SemiCircle using Standard Formula
#include<stdio.h>
int main()
{
int r;
float area;
printf("enter radius of the circle: ");
scanf("%d",&r);
area=(22*r*r)/(2*7);
printf("area of a semicircle: %f\n",area);
return 0;
}
The output of the above c program; as follows:
enter radius of the circle: 5 area of a semicircle: 39.000000
C Program to Find Area Of SemiCircle using Function
#include<stdio.h>
float area(float r)
{
return (22*r*r)/(7*2);
}
int main()
{
float a,r;
printf("enter radius of the semicircle: ");
scanf("%f",&r);
a=area(r);
printf("area of a semicircle: %f\n",a);
return 0;
}
The output of the above c program; as follows:
enter radius of the semicircle: 8 area of a semicircle: 100.57142
C Program to Find Area Of SemiCircle using Pointer
#include<stdio.h>
void area(float *r,float *a)
{
*a=(22*(*r)*(*r))/(2*7);
}
int main()
{
float r,a=1;
printf("enter radius: ");
scanf("%f",&r);
area(&r,&a);
printf("area of a semicircle: %f\n",a);
return 0;
}
The output of the above c program; as follows:
enter radius: 10 area of a semicircle: 157.14285
