Question

1) Viet chuong trinh tinh chu vi va dien tich cua hinh chu nhat co chieu dai a va chieu rong b duoc nhap tu ban phim. Xuat ket qua

Answer 1

#include <bits/stdc++.h>

using namespace std;

double a,b,cv,dt;

int main()

{

cin>>a>>b;

cv=(a+b)*2;

dt=a*b;

cout<<fixed<<setprecision(2)<<cv<<endl;

cout<<fixed<<setprecision(2)<<dt;

return 0;

}