What is the surface area of the rectangular prism below 7, 7, 14

Surface Area A = 490 cm²

Step-by-step explanation:

Surface area of a prism A = 2 (w l + h l + h w)

where l = length

w = width

h = height

l = 7 cm; w = 7 cm; h = 14 cm

Surface Area = 2 { (7 * 7) + (14 * 7) + (14 * 7) }

A = 2 { 49 + 98 + 98}

A = 2 * 245

A = 490 cm²