ucgende alan

Question

ABC ucgeninde [EF]\\[BC]

A(DEF)=2A(AFE) ise $\frac{|FE||}{BC|} kactir?

Answer 1

$A=\dfrac{h_1.x}{2}$

$2A=\dfrac{h_2.x}{2}$   oranlarsak

$\dfrac{1}{2}=\dfrac{h_1}{h_2}$

$2.h_1=h_2$

bize      $\dfrac{h_1}{h_1+h_2}=\dfrac{|FE|}{|BC|}$  lazım

$\dfrac{h_1}{3h_1}=\dfrac{|FE|}{|BC|}=1/3$

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