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.
Volume and Surface Area Study Guide Volume Volume of a Rectangular Prism = (length x width x height) Volume of a Triangular Prism = (area of the base x height of the prism) Surface Area Surface Area of Rectangular Prisms, Triangular Prisms and Pyramids = find the area of all the faces then add them up. Rectangular Prisms: 6 faces (front, back, left, right, top and bottom) All faces are rectangles to find the area multiple length x width of each rectangle and add them all up. Triangular Prisms: 5 faces (two triangles and three rectangles) Find the area of the two triangles A= then find the area of the three rectangles and add them up.