حل التاسك التاسع

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1- #include <iostream> using namespace std; int main() { double raduis , length , area , volume ; cout<<"Enter the radius and length of a cylinder: "; cin>>raduis; cin>>length; area= raduis*raduis*3.14; volume= area*length; cout<<"The area is "<<area<<endl; cout<<"The volume is "<<volume<<endl; return 0; }

2- #include <iostream> using namespace std; int main() { double meter , feet; cout<<"Enter a value for feet: "; cin>>feet; meter= feet * 0.305; cout<<"in meter equal : "<<meter<<endl; return 0; }

3- #include <iostream> using namespace std; int main() { int salary , sum = 0 ; int i; // the counter of for loop for(i=1;i<=10;i++) // 10 refer to number of employees { cout<<"Enter Salary : "; cin>>salary; sum=sum+salary; } cout<<"Sum of salaries is : "<<sum<<endl; return 0; }