Triangle ABC is similar to triangle DEF. The measures of the side lengths are in cm. Triangle A B C 10... 6 7 Triangle D E F 20... 14 Which proportional can be used to find the length of EF¯¯¯¯¯¯¯¯ in cm?

EF = 12 cm

Step-by-step explanation:

In similar triangles, the ratio of their sides are equal to each other. Now, we need to find out the correspondence between the sides:

It is clear from the side lengths that the sides AB and CA in triangle ABC correspond to the sides DE and FD in triangle DEF. The reason is the same ratio:

Therefore, EF must be corresponding to BC. So, another ratio equation can be written as follows:

EF = 12 cm