19. Program that computes the area of a sector of a circle when theta is the angle in radians between the radii.
Chapter 4:
Input And Output
Programming Exercise
Problem # 19:
Write a program that computes the area of a sector of a circle when theta is the angle in radians between the radii.
Solution:
#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
// ((r*r)/2)*theta
float theta, radius, area;
cout<<"Enter radius of circle : ";
cin>>radius;
cout<<"Enter angle in radians between radii : ";
cin>>theta;
area = (theta/2)*radius*radius;
cout<<"Area of a sector of a circle : "<<area<<endl;
return 0;
}
#include<conio.h>
using namespace std;
int main()
{
// ((r*r)/2)*theta
float theta, radius, area;
cout<<"Enter radius of circle : ";
cin>>radius;
cout<<"Enter angle in radians between radii : ";
cin>>theta;
area = (theta/2)*radius*radius;
cout<<"Area of a sector of a circle : "<<area<<endl;
return 0;
}
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