Christy uses some blocks to make a rectangular prism and cube.
How many blocks does Christy use altogether?
| 17 | 34 | 43 | 47 |
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Geometry, NAP-B2-35 SA
Lisa builds this 3D object for a playground with cubes.
She paints all faces of the object, including the base.
How many cubes are painted on exactly 2 faces?
Show Worked Solution
`text(9 cubes will be painted on exactly 2 faces.)`
`text{(the shaded cubes below will be the ones}`
`text{with exactly 2 faces painted.)}`
Geometry, NAP-H2-10
This is a view of a solid made by stacking 22 identical cubes.
How many cubes are completely hidden in this view?
| `16` | `15` | `7` | `6` |
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Geometry, NAP-D2-36 SA
Nathan stacked 30 blocks into a rectangular prism as shown below.
The prism has 6 faces.
Nathan removes some blocks and the remaining shape has 14 faces.
What was the smallest number of blocks that he could have removed?
Show Worked Solution
`text(If Nathan removes the middle block in the second)`
`text(column, the number of faces on the new shape)`
`text(increases by 4.)`
`:.\ text(If he removes the middle block of the second and)`
`text(fourth column, the shape has 14 faces.)`
`:.\ text(2 blocks is the smallest number.)`