Page 75 - 01-Yr5_Front cover-ccp.indd
P. 75

II  Packing problem.s  II  II  II  I centicubes


         You  might like to use Centicubes or other materials
         or draw diagrams to help you with this page.
                                                                                   I  ------ J




        QJ      Rachel has an empty box 2 cm by 3 cm by 4 cm.







                She has also made several cuboids like these.











                a  Describe what combination of cuboids Rachel could use to fill  her box.
                b  Try to find another way to fill the box.


        ~ Rob has four cuboids like A,  one cuboid like B
                and one cuboid like C.












                                                                                        cuboid C
                cuboid A                            cuboid B
                                                                       REMEMBER
                a  Find the volume of each type of cuboid.
                                                                       A cube is a  cuboid with edges
                b  Find the total volume of all his cuboids.           which are all the same length.

        @]      Rob needs to pack the six cuboids into a box exactly the right size.


                a  Write what dimensions Rob's box should have.
                b  Could the box have other dimensions and still be the right size?
                Now try page 70.


        I STEPS 5:17 I
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