11cm
Surface area = 2*(12*8 + 8*9 + 9*12) sq cm = 2*(96 + 72 + 108) = 552 cm2
The surface area of a prism is the two bases and all the sides A = 2 *area of base + Perimeter of base * Height of prism.
The surface area of a prism = 2 × area of base + perimeter of base × H
28
Surface Area = 2 × Base Area + Base Perimeter × Length
The surface area is 88.
Rectangular Prism surface area formula is Area = 2 (wh + lw + lh) (Length x width of a side) x 2 + (length x width of perpendicular side) x 2 + (length x width of end) x 2 = surface area of a rectangular prism
surface area prism = 2 × area end + total area side = 2 × area end + perimeter end × length of prism The information given to you will allow you to work out the area of one pentagonal end, and the perimeter of the pentagonal end.
Surface Area = 2 × Base Area + Base Perimeter × Length
To calculate the surface area of a rectangular prism, you can use the formula: Surface Area = 2(lw + lh + wh), where l is the length, w is the width, and h is the height. For a prism measuring 4 inches by 6 inches by 8 inches, the surface area is calculated as follows: Surface Area = 2(46 + 48 + 6*8) = 2(24 + 32 + 48) = 2(104) = 208 square inches. Thus, the surface area of the prism is 208 square inches.
Surface area = 2LW + 2(L+W)H
2*Area of Bases + Perimeter of base*Length.