Question

find the total surface area of a rectangular solid with a lenght of 9 ft a width of 11 ft and a height of 14 ft.

Answer 1

Surface area of rectangular prism is 2(lb + bh + lh)

Given measurments l = 9ft , b = 11ft , h = 14ft.

= 2[9(11) + 11(14) + 14(9)]

= 2[99 + 154 + 126]

= 2(379)

= 758

Surface area  of given rectangular prism is 758 ft^2.