Question

i \can\ → similarity
△abc ~ △def with a proportion ratio of 1:3. what is the ratio of their perimeters?
a 1:3 c 1:6
b 1:9 d 2:9
38
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Explanation:

Step1: Recall the property of similar triangles

For similar triangles, the ratio of their perimeters is equal to the ratio of their corresponding side lengths (proportion ratio).

Step2: Apply the property

Given the proportion ratio of \(\triangle ABC\) and \(\triangle DEF\) is \(1:3\). By the property of similar triangles, the ratio of their perimeters is also \(1:3\).

Answer:

A. \(1:3\)