Answer:
<em>A = 94 square cm</em>
Step-by-step explanation:
<u>Surface Area of a Closed Box</u>
The surface area of a rectangular prism of dimensions x, y, and z is given by:
A = 2(xy + yx + xz)
The dimensions of a closed box (a rectangular prism) with dimensions x=3 cm, y=5 cm, and z=4 cm is:
A = 2(3*5 + 5*4 + 3*4)
Calculating:
A = 2(15 + 20 + 12)
A = 2(47)
A = 94 square cm
