G S Rehill's Interactive Maths Software Series - "Building a Strong Foundation in Mathematics" from mathsteacher.com.au.

Order a 12-month Year 7 Interactive Maths software Homework Licence for only $19.95. Order a 12-month Year 8 Interactive Maths software Homework Licence for only $19.95. Order a 12-month Year 9 Interactive Maths software Homework Licence for only $19.95. Order a 12-month Year 10 Interactive Maths software Homework Licence for only $19.95.

Year 9 Interactive Maths - Second Edition


Problem Solving

Example 30

The length of a cuboid is 25 cm, its width is 21 cm, and its volume is 3675 cm³.  Find its height.

Solution:

So, the height of the cuboid is 7 cm.



Example 31

How many 6 cm cubes will fit into a rectangular box whose internal measurements are 60 cm by 54 cm by 42 cm?

Solution:




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