Answer:
the Ratio between the small and big triangles is that of b. [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
We can solve this ratio problem by using the Rate of Change formula as shown below,
[tex]\frac{y2-y1}{x2-x1}[/tex]
In this situation y would be the smaller triangle and x would be the larger triangle. Since all the values are given to use we can just plug those values in and solve for the rate of change / ratio.
[tex]\frac{4-3}{12-9} = \frac{1}{3}[/tex]
So the rate of change or ratio between the small and big triangles is that of [tex]\frac{1}{3}[/tex]
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