The rectangular box can be constructed from the pattern above. The box has a length of 8 units, a width of 2 units, and a height of 2 units. What is the surface area of the box?

72 units

Step-by-step explanation:

SA=2lw+2lh+2hw

SA=2(8x2) + 2(8x2) + 2(2x2) Note, Not distributive

SA= 2(16) + 2(16) + 2(4)

SA= 32 + 32 + 8

SA= 72

72 sq. units

Step-by-step explanation:

There are four rectangles of length 8 units and width 2 units, and two squares of length 2 units each.

area of one rectangle=8×2=16 sq. units

area of four rectangles=16×4=64 sq. units

area of on square=2×2=4 sq. units

area of two squares=4×2=8 sq. units

total surface area=64+8=72 sq. units

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