ΔABC is similar to ΔDEF. Length of AB is 18 cm and length of the corresponding side DE is 10 cm. What is the ratio of Perimeter of ΔABC : Perimeter of ΔDEF?
It is given that ΔABC $$\sim$$ ΔDEF
Also, length of AB = 18 cm and length of the corresponding side DE = 10 cm
=> Ratio of Perimeter of ΔABC : Perimeter of ΔDEF = Ratio of corresponding sides = AB : DE
= $$\frac{18}{10} = \frac{9}{5}$$
$$\therefore$$ The required ratio is 9 : 5
=> Ans - (B)
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