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RIC-1069 Maths terms and tables

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Transformations<br />

Non-Euclidean or similarity transformations (Dilations)<br />

The increase or decrease in the size of an object or figure is a non-<br />

Euclidean transformation. The resulting image is the same shape as the<br />

original (similar).<br />

Enlargement<br />

An enlargement is an increase in the size of an object or figure while<br />

maintaining the same shape.<br />

Point projection<br />

Enlargement by grid<br />

centre of<br />

enlargement<br />

original<br />

enlargement<br />

Increasing the spaces<br />

on the grid.<br />

Proportionally increasing<br />

the number of squares<br />

covered.<br />

Reduction<br />

A reduction is a decrease in the size of an object or figure while<br />

maintaining the same shape.<br />

Point projection<br />

Reduction by grid<br />

centre of<br />

reduction<br />

original<br />

reduction<br />

Decreasing the spaces<br />

on the grid.<br />

Proportionally decreasing<br />

the number of squares<br />

covered.<br />

Distortion transformations<br />

A distortion transformation is the process of changing both the shape <strong>and</strong><br />

size of an object or figure so that its image is still topologically the same.<br />

R.I.C. Publications ® www.ricpublications.com.au <strong>Maths</strong> <strong>terms</strong> <strong>and</strong> <strong>tables</strong><br />

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