Question

Помогите с float c++

Answer 1

Ответ:

1) #include <iostream>

using namespace std;

int main()

{

float C, R;

float pi = 3.14;

cout << "Enter R value: ";

cin >> R;

C = 2 * pi * R;

cout << C;

}

2) #include <iostream>

using namespace std;

int main()

{

float S, a, b, h;

cout << "Enter a value: ";

cin >> a;

cout << "Enter b value: ";

cin >> b;

cout << "Enter h value: ";

cin >> h;

S = (a+b)*h/2;

cout << S;

}

3) #include <iostream>

using namespace std;

int main()

{

float P, a, b, c;

cout << "Enter a value: ";

cin >> a;

cout << "Enter b value: ";

cin >> b;

cout << "Enter c value: ";

cin >> c;

P = (a+b+c)/2;

cout << P;

}

4) #include <iostream>

using namespace std;

int main()

{

float m, n, S;

cout << "Enter m value: ";

cin >> m;

cout << "Enter n value: ";

cin >> n;

S = m*n/2;

cout << S;

}