1 The formula SA = 2(1h + lw + wh) gives
SA, the surface area of a rectangular
prism with length 1, width w, and height
h. For a rectangular prism with surface
area 256 square centimeters, height
5 centimeters, and width 4
centimeters, the formula becomes
256 = 2(51 +41 +5.4). What is one half
of the length of the prism?
А
275 cm
B 6 cm
С
45cm
D 5 cm
I