The scale factor of similar shapes can be found by dividing the side length of new shape by the side length of the old shape.
Picture X | Picture Y |
| |
Since they ratio between both dimensions are the same the two pictures are similar and the scale factor applied to Picture X to make Picture Y is 0.5. | |
Picture M | Picture N |
| |
Since they ratio between both dimensions are NOT the same the two pictures are not similar. | |
Below is an image of a Hippo
Using a ruler determine which of the following images are similar and state the scale factor used.
A | B | C |
D | E | |
[1]<a href="http://www.public-domain-image.com/full-image/fauna-animals-public-domain-images-pictures/hippopotamus-animal.jpg-royalty-free-stock-image.html" title="Hippopotamus animal">Hippopotamus animal</a> by Andrew McMillan