26-Masala-Teng tomonli uchburchak tomoni berilgan, uchburchak yuzasi topilsin

26-Masala-Teng tomonli uchburchak tomoni berilgan, uchburchak yuzasi topilsin.

# include

# include

using namespace std;

int main ()

{

double a,S;

cout<<"Teng tomonli uchburchakning tomonining qiymatini kiriting "<

cout<<"a= "; cin>>a;

if(a>=0)

{

S=(sqrt(3)*a*a)/4;

cout<<"uning yuzasi S="<

main();

}

else

cout<<"a ga musbat son kiriting"<main();

}