C++ :

#include<bits/stdc++.h>
using namespace std;
int main()
{
	cout<<"    *"<<endl;
	cout<<"   ***"<<endl;
	cout<<"  *****"<<endl;
	cout<<" *******"<<endl;
	cout<<"*********"<<endl;
	cout<<"   ***"<<endl;
	cout<<"   ***"<<endl;
	cout<<"   ***"<<endl;
	cout<<"   ***"<<endl;
	return 0;
}