SOLUTION: Question
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 t
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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 t
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Question 41921: Question
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 psbhowmick(878) (Show Source):
You can put this solution on YOUR website! The matchbox is a rectangular parallelopiped with dimensions 4 cm x 2.5 cm x 1.2 cm.
So the total surface area of the parallelopiped is 2(4x2.5 + 2.5x1.2 + 1.2x4) = 35.6 .
Now, the bottom and side walls of the match box has two sheets (one each for the sliding portion and the outer envelope) of cardboards, so additional area is (2x1.2x4 + 4x2.5) = 19.6 .
So total area of cardboard reqd. is (35.6 + 19.6) = 55.2 .
Well, I thought a figure will be more helpful. Here it is.
