Using Scale Factors for enlargements
Written Work - copy into your book.
Enlargements happen when the scale factor is greater than 1 ( so the image is bigger than the original)
LINK to enlargement sample
Reductions occur when the scale factor is less than 1.
LINK to reduction sample
Use the Geoigebra actiivity below to try to predict the image lengths for a scale factor of 2, 3 ,4 and 0.5.
Slide the scale factor to create enlargements and reductions, and move the blue dots to change the shape
Can you work out the length of the unknown side, marked "n" in the similar shapes below?
The value of n is: