If two triangles are SIMILAR with sides in ratio 2:5, the ratio of their PERIMETERS is:
A2:5
B4:25
C√2:√5
D2:25
Answer & Solution
Correct answer: A. 2:5
Perimeters scale LINEARLY with side ratio. So perimeters are 2:5. (Areas would scale as 4:25 — the square ratio.)
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