SOLUTION: From a 12-inch-by-16-inch piece of cardboard, 0.5-inch-square corners are cut out, as shown in the figure below, and the resulting flaps are folded up to form an open box. Find the

Algebra ->  Surface-area -> SOLUTION: From a 12-inch-by-16-inch piece of cardboard, 0.5-inch-square corners are cut out, as shown in the figure below, and the resulting flaps are folded up to form an open box. Find the      Log On


   

Question 292615: From a 12-inch-by-16-inch piece of cardboard, 0.5-inch-square corners are cut out, as shown in the figure below, and the resulting flaps are folded up to form an open box. Find the volume and the external surface area of the box. Assume a = 16 in, b = 12 in, m = n = 0.5 in
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
V=(12-1)(16-1).5
V=11*15*.5
V=82.5 in^3 is the volume.
SA=12*16+2(11*.5)+2(15*.5)
SA=192+5.5+7.5
SA=192+13
SA=205 ans.