Question

Find the scale factor from Figure A to Figure B and the center of dilation for each figure.1.2BA1A

Answer 1

Scale factor also called similarity ratio is defined by the ratio between the lengths of the polygon sides:

Then, scale factor would be:

`SF=\frac{\text{length from figure B}}{\text{length from figure A}}`
`\begin{gathered} SF=(5)/(2) \\ SF=2.5 \end{gathered}`

Scale factor is 2.5 units.