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Volume, SMB-002

A net is made using four rectangles and two trapeziums. It is folded to form a solid.

 What is the volume of the solid, in cm3 ?   (3 marks)

Show Answers Only

`576\ text(cm)^3`

Show Worked Solution

`text(Volume)=Ah\ \ text(where)\ A\ text(is the area of a trapezium)`

COMMENT: Note that `h` in the “area” formula is different to the `h` used in the “volume” formula.
`A` `=1/2 h(a+b)`
  `=1/2xx8(11+5)`
  `=64\ text(cm²)`

 

`:.V=Ah=64xx9=576\ text(cm)^3`