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In the figure $Δ A D E$ and $Δ A B C$ are similar, then $B C =$

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1.2

8.7

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3.6

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detailed solution

Correct option is D

From figure

$Δ A D E \sim Δ A B C$

Given $\frac{A D}{A B} = \frac{D E}{B C}$

$\Rightarrow \frac{1}{3} = \frac{1.2}{B C}$

$\Rightarrow B C = 3.6$

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In the figure ΔADE and ΔABC are similar, then BC=