A rectangular cube has sides measuring 3 inches long by 2 inches wide by 0.5 inches high. If the surface area of the rectangle is the same as a cube, what do the sides/walls of the cube measure? Round to the nearest whole number.  Options:
A) 4
B) 5
C) 6
D) 7
E) 2
First calculate the surface area of the rectangle by multiplying the length and width of the rectangle together, then multiply by 2 to get both sides of the rectangle. This calculates to 12 inches. Find the surface area of the sides of the rectangular cube. Multiply the height by the length of the rectangle. Multiply the answer by 2 (for the 2 sides on the rectangular cube). This calculates to 3 inches. Then multiply the width of the rectangle by the height. Multiply the answer by 2 (for the 2 sides on the rectangular cube). This calculates to 2 inches. Add the totals together to get the rectangular cube surface area of 17 inches. Since a square cube has 6 sides, divide the surface area by 6. This calculates to 2.833 inches as the surface area of each side of the cube. The square root of 2.833 is 1.683. Rounding to the nearest whole number that makes each side of the cube measuring 2 inches. The correct answer is (2).
<result>E</result>
A rectangular cube has sides measuring 3 inches long by 2 inches wide by 0.5 inches high. If the surface area of the rectangle is the same as a cube, what do the sides/walls of the cube measure? Round to the nearest whole number.