Driver Code
public static void Main ( ) { float side = 4 ; Console . Write ( " Area ▁ of ▁ Equilateral ▁ Triangle : " ) ; Console . WriteLine ( area_equi_triangle ( side ) ) ; Console . Write ( " Perimeter ▁ of ▁ Equilateral ▁ Triangle : " ) ; Console . WriteLine ( peri_equi_triangle ( side ) ) ; } }