SOLUTION: Find the total area of cardboard used in making a match box, complete with the sliding portion, 4 cm long, 2.5 cm wide and 1.2 cm deep (Please ignore the thickness of the cardboard

Algebra ->  Surface-area -> SOLUTION: Find the total area of cardboard used in making a match box, complete with the sliding portion, 4 cm long, 2.5 cm wide and 1.2 cm deep (Please ignore the thickness of the cardboard      Log On


   

Question 703869: Find the total area of cardboard used in making a match box, complete with the sliding portion, 4 cm long, 2.5 cm wide and 1.2 cm deep (Please ignore the thickness of the cardboard).
Please help to solve this.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Two parts make the match box.

Rectangular sleeve: Top and bottom are 4*2.5*2 and front and back are 4*1.2*2

Rectangluar inner box: Top is open, so front and back are 4*1.2*2, left and right sides are 1.2*2.5*2, and bottom is 4*2.5

All of those terms are c.m.^2. Compute sum.