Question

in the figure , DE ll BC if AD = x , DB= x -2 , AE =X + 2 and EC = x - 1 then the value of x is .... A) 3
B) 4
C) 2
D) 5​

Answer 1

Answer:

In Δ ABC, DE ∥ BC

∴  

DB

AD

​

Step-by-step explanation:

=  

EC

AE

​

 

(By basic proportionality theorem)

⇒  

x−2

x

​

=  

x−1

x+2

​

 

⇒x(x−1)=(x+2)(x−2)

⇒x  

2

−x=x  

2

−4

⇒x=4.

Answer 2

Answer:

(b) 4

Step-by-step explanation:

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