Answer:
![A.\ (4)/(6) = (6)/(9) = (8.5)/(12.5)](https://img.qammunity.org/2021/formulas/mathematics/high-school/5vcahogzun2bzf1bl0ij9sus91bm3znv4n.png)
Explanation:
Given
Let the two triangles be A and B
Sides of A: 4, 6 and 8.5
Sides of B: 6, 9 and 12.5
Required
Which set of ratio determines the dilation
To determine the dilation of a triangle over another;
We simply divide the side of a triangle by a similar side on the other triangle;
From the given parameters,
A ------------------B
4 is similar to 6
6 is similar to 9
8.5 is similar to 12.5
Ratio of dilation is as follows;
![Dilation = (4)/(6)](https://img.qammunity.org/2021/formulas/mathematics/high-school/5i3a0urnl8nxwz02d3unh5pb93mb3ku6cq.png)
![Dilation = (6)/(9)](https://img.qammunity.org/2021/formulas/mathematics/high-school/m368qo07qj930uedzpg30f853k36y3rtjs.png)
![Dilation = (8.5)/(12.5)](https://img.qammunity.org/2021/formulas/mathematics/high-school/9q4o2xf1tcs8nkfxzwmv8kseasl06ll6js.png)
Combining the above ratios;
![Dilation = (4)/(6) = (6)/(9) = (8.5)/(12.5)](https://img.qammunity.org/2021/formulas/mathematics/high-school/f0etrepwkw7te97ooups1wpzotd2ysmogr.png)
From the list of given options, the correct option is A,