Question

∆ ABC is similar to ∆DEF .if AB = 10 cm , DE = 12 cm , perimeter of ∆ABC =25 cm , find the perimeter of ∆ DEF​

Answer 1

Step-by-step explanation:

ΔABC ~ ΔDEF

⇒ AB/DE = k

∴ 10/12 = 5/6

let P pe perimeter of ΔDEF

∴ 25/P = 5/6

⇒ P = 25 * 6 / 5

= 30cm

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