Answer:
scale factor = 4
Explanation:
To find the scale factor from Figure A to Figure B. Simply divide one length measure of B from one complement length measure of A.
[tex]\sf scale\:factor = \dfrac{length\:measure\:of\:new\:image}{length\:measure\:of\:original\:image}[/tex]
Here the scale factor :
[tex]\rightarrow scale \ factor = \dfrac{length \ of \ B}{length\ of \ A}[/tex]
[tex]\rightarrow scale \ factor = \dfrac{72}{18} \quad or \quad \dfrac{40}{10} \quad or \quad \dfrac{44}{11}[/tex]
[tex]\rightarrow scale \ factor =4[/tex]
