Question

Two triangles are similar. If the ratio of their corresponding sides is 2 : 3 , what is the ratio of their corresponding perimeters ?

• A. $2 : 3$
• B. $4 : 9$
• C. $4 : 6$
• D. $6 : 9$

Answer 1

Answer:

$2 : 3$

The correct answer is Option A (2 : 3). ## The Similarity Rule When two shapes are similar: 1. Lengths (sides, heights, medians, and perimeters) always share the exact same ratio. 2. Areas share the square of that ratio. 3. Volumes share the cube of that ratio.