$\triangle$ DEF and $\triangle$ GHI are similar triangles. Length of AB is 10 cm and length of the corresponding side DE is 6 cm. What is the ratio of Perimeter of $\triangle$ABC to $\triangle$DEF?

$\triangle$ DEF and $\triangle$ GHI are similar triangles. Length of AB is 10 cm and length of the corresponding side DE is 6 cm. What is the ratio of Perimeter of $\triangle$ABC to $\triangle$DEF?
1). 5:3
2). 3:5
3). 25:9
4). 9:25

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