The surface area of the pyramid will be given as follows: Area of triangles: A=1/2×base×height A=1/2×12×18 A=108 m² Area of 6 triangles is given by: A=108×6=648 m²
Area of the hexagon: A=6×1/2×12×6√3 A=374.123m²
Total surface area: SA=648+374.123 SA=1022.123 m²~1022 m²