Traditional Culture Encyclopedia - Traditional festivals - As shown in the figure is a kind of food packaging box surface unfolding figure first folded to experience the data in the figure and then according to the size of the figure to calculate the surface
As shown in the figure is a kind of food packaging box surface unfolding figure first folded to experience the data in the figure and then according to the size of the figure to calculate the surface
As shown in the figure is a kind of food packaging box surface unfolding figure first folded to experience the data in the figure and then according to the size of the figure to calculate the surface area of the box unit cm!
Length: 70cm; width: 60cm; height: 40cm
Rectangular surface area formula:
(length*width+width*height+length*height)*2
That is: (70*60+60*40+70*40)*2=18800 (cm^2)
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