Calculate area of a triangle.

//Program to calculate area of a triangle.
#include<iostream.h>
#include<conio.h>
void main()
{
    clrscr();
    float a,b;
    cout<<"Enter height: ";
    cin>>a;
    cout<<"Enter base: ";
    cin>>b;
    a=0.5*a*b;
    cout<<"Area of the triangle is: "<<a;
    getch();
}