Question

If DE//BC, find x in the given figure!!☺☺

Answer 1

use mid point theorem. ..
..then..
x/x-2=x+2/x-1
..
after it cross multipication...
x(x-1)=(x-2)×(x+2)
x2-x=x2+2x-2x-4
-x=-4
x=4

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.i think it is correct....
.
.
.☺

Answer 2

Hi Friend ✋✋✋

Given That :-

DE // BC

So by BASIC PROPORTIONALITY THEOREM ....

$\frac{AD}{BD} = \frac{AE}{EC} \\ \\ \frac{x}{x - 2} = \frac{x + 2}{x - 1} \\ \\ {x}^{2} - x = {x}^{2} - {2}^{2} \\ \\ {x}^{2} - x = {x}^{2} - 4 \\ \\ x = 4$


Hope it helps ☺☺