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:
$2 : 3$
Read Explanation:
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.
