Answer:
2/3
Step-by-step explanation:
These two figures are similar since they have the same shape but not the same size
Yellow figure is larger than the orange figure therefore, the yellow figure is a larger or a dilated version of the orange figure.
Scale factor = Small side
Large side
Scale factor = 10/15
Scale factor = 2/3
The scale factor of this dilation is 2/3. The orange figure is dilated 2/3 times to form the yellow figure.
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