Printing value of volume and surface area
cout << " Volume ▁ Of ▁ Frustum ▁ of ▁ Cone ▁ : ▁ " << volume ( small_radius , big_radius , height ) << endl ; cout << " Curved ▁ Surface ▁ Area ▁ Of ▁ Frustum ▁ of ▁ Cone ▁ : ▁ " << curved_surface_area ( small_radius , big_radius , slant_height ) << endl ; cout << " Total ▁ Surface ▁ Area ▁ Of ▁ Frustum ▁ of ▁ Cone ▁ : ▁ " << total_surface_area ( small_radius , big_radius , slant_height , height ) ; return 0 ; }