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.
The cross section has the same size and shape as the base, as can be seen in the following diagrams. The surface area of a solid is the total area of all its external faces. To calculate the surface area of a prism we need to: Step 1: Determine the shape of each face. Step 2: Calculate the area of each face. Step 3: Add up all the areas to get the total surface area. We can also use the formula. Surface area of prism = 2 Ã area of base + perimeter of base Ã height. Worksheet to calculate the surface area and volume of a rectangular prism. Example: Calculate the surface area of the following prism. Solution: There are 2 triangles with the base = 4 cm and height = 3 cm.