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Geometry, NAP-C2-39 SA

David drew a scale drawing of his road bike on a grid.
 

What scale is David using for his picture?

One unit on the grid represents

   cm
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`40\ text(cm)`

Show Worked Solution

`text(Strategy 1:)`

`1.5\ text(units)` `= 60\ text(cm)`
 `:. 1\ text(unit)` `= 60 ÷ 1.5`
  `= 40\ text(cm)`

 

`text(Strategy 2:)`

`4\ text(units)` `=160\ text(cm)`
`:. 1\ text(unit)` `=160 -: 4`
  `=40\ text(cm)`

Filed Under: Transformations and Symmetry, Transformations and symmetry Tagged With: Band 9, smc-3122-40-Other transformations, smc-3555-40-Other transformations, smc-920-40-Other transformations

Geometry, NAP-G2-19

Sandra has a square piece of paper.

She folds it in half twice and then cuts a triangle piece as shown below.
 

What will the square piece of paper look like after Sandra unfolds it?

 
 
 
 
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Show Worked Solution

Filed Under: Transformations and Symmetry, Transformations and symmetry, Transformations and Symmetry Tagged With: Band 6, smc-3122-10-Reflections/Folding, smc-3122-40-Other transformations, smc-3555-10-Reflections/Folding, smc-3555-40-Other transformations, smc-920-10-Reflections/Folding, smc-920-40-Other transformations

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