How to get decimal points in my output in this case?

Question

https://code.sololearn.com/cx73vOe9Y1e5/#cpp

I want the program to give me answer in points but it is not. It is not doing so and rounding it off.

Answer 1

E.g.

#include <iostream>
#include <iomanip>

int main() {

double height, base, area;

std::cin >> height >> base;
std::cout << std::setprecision(2) << std::fixed;
std::cout << "The area of the triangle is " << base*height/2;

return 0;
}

Answer 2

Variables should be "double" or "float", not "int".