C Program to Compute Area of Sector and Arc Length

For new coders out there here's a sample c program to compute Area of a Circular Sector and Arc length

Here's the code;

#include
#include

float ComputeSectArea();
float ComputeArcLength();

void main(void){
int choice;
float AreaSector,ArcLength;

clrscr();
printf("\nWhat would you like to do?");
printf("\n[1] Compute Area of Sector");
printf("\n[2] Compute Arc Length");
printf("\nEnter Choice: ");
scanf("%d",&choice);

if (choice == 1){
AreaSector = ComputeSectArea();
printf("\n Area of Sector is %.2f",AreaSector);
}
else {
ArcLength = ComputeArcLength();
printf("\n Arc Length is %.2f",ArcLength);
}
getch();
}

float ComputeSectArea(){

int theta;
int radius;
float area_of_sector,pi=3.14;

printf("\nPlease enter theta:\t");
scanf("%d",&theta);
fflush(stdin);
printf("\nPlease enter radius:\t");
scanf("%d",&radius);
fflush(stdin);

area_of_sector= ((float)theta / (float)360.00) * pi * radius * radius;
return area_of_sector;

}

float ComputeArcLength(){

int theta;
int radius;
float length_of_arc;

printf("\nPlease enter theta:\t");
scanf("%d",&theta);
fflush(stdin);
printf("\nPlease enter radius:\t");
scanf("%d",&radius);
fflush(stdin);

length_of_arc= ((float)theta / (float)180.00) * radius;
return length_of_arc;
}