Praveen Kumar's answer to [36] marcoo's Primary 5 Maths Area & Volume question.
![[36] marcoo](https://ask.manytutors.com/users/1534756809-81446-thumbnail.jpg?1592058120)
For part (b), why 50 cm2 ?
You have to count the total number of exposed faces of the cubes. (The ones that will be exposed to the paint) There are 50 faces. Try counting level by level. It is tedious but you should get 50.
OK thx
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