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WSKT 212 PAC

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'n Kartonhouer word vervaardig deur<br />

'n reghoekige vel karton, 45 cm by 30<br />

cm te neem en uit elke hoek 'n<br />

vierkantige stuk karton te sny. Die<br />

kante word dan boontoe gevou om die<br />

wande van die houer te vorm:<br />

8.1 Laat x die sylengte wees van elke<br />

vierkant wat uit die karton gesny word.<br />

Toon aan dat die volume van die<br />

houer gegee word deur die formule<br />

3 2<br />

V 4x 150x 1350x<br />

= − + .<br />

Vraag 8/ Question 8<br />

97<br />

A cardboard container is manufactured<br />

from a rectangular sheet of cardboard,<br />

45 cm by 30 cm. A square piece of<br />

cardboard is cut from each of the four<br />

corners and the sides are then folded<br />

upwards to form the sides of the<br />

container:<br />

Let x be the side length of each of the<br />

squares which are cut out of the sheet<br />

of cardboard. Show that the volume of<br />

the container is given by the formula<br />

3 2<br />

V 4x 150x 1350x<br />

= − + .

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