Question

Triangle ABC is similar to triangle DEFwhich proportion can be used to find the length of DE in centimeters?A. 4/3 = DE/9B. 5/15 = DE/4C. 4/DE = 9/3D. 9/DE = 3/5

Answer 1

In the given figure, Triangle ABC is similar to triangle DEF.

Applying the Similar Triangle Formula, the proportion to be used to find the length of DE is:

`\frac{4\text{ cm}}{3\text{ cm}}\text{ = }\frac{DE}{9\text{ cm}}`

Therefore, the answer is A.