Box
The cardboard is a box-shaped quadrangular prism with a rhombic base. Rhombus has a side 5 cm, one diagonal 8 cm long, and the box's height is 12 cm. The package will open at the top.
How many cm2 of cardboard do we need to cover overlap and joints that are 5% of the area of cardboard?
How many cm2 of cardboard do we need to cover overlap and joints that are 5% of the area of cardboard?
Correct answer:
![](/img/94/Rhombic_prism.png)
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