# Wallpaper

3750 cm square of wallpaper is needed to glue a cube-shaped box. Can Dad cut out the whole necessary piece of wallpaper as a whole if he has a roll of wallpaper 50 cm wide?

Result

x =  0

#### Solution:

$S=3750 \ \text{cm}^2 \ \\ \ \\ S=6a^2 \ \\ \ \\ a=\sqrt{ S/6 }=\sqrt{ 3750/6 }=25 \ \text{cm} \ \\ \ \\ t=50 \ \text{cm} \ \\ b=3 \cdot \ a=3 \cdot \ 25=75 \ \text{cm} \ \\ b>t \ \\ x=0$

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