At that time it was called 'The Land of Yan and Zhao', because its northern area was dominated by the Kingdom of Yan, while its southern area was occupied by the Kingdom of Zhao. Today, that same area is home to more than 50 minority ethnic groups, such as Han, Hui, Manchu, Mongolian and Korean.
Pentagonal Prism Formula 1  : Area of Base(A) = Â½ * a * 5 * s Perimeter of Base(P) = 5s Surface Area of Prism = 5as + 5sh = 5as + Ph Volume of Prism = (5/2)ash = Ah. 2  a = apothem length, s = side, h = height.
Answers: The volume of the triangular prism is 18 cm 3. Volume can be found by multiplying the area of the base times the height. Since this is a triangular prism, the triangles are considered the bases whose area can be found using the formula A = [math]\frac{b\times h}{2}[/math]..3.1.1 Calculate the surface area and volume of prisms and use appropriate units, such as cm 2 and cm 3. Justify the formulas used. Justification may involve decomposition, nets or other models.