Respuesta :

fathimaasna14

Step-by-step explanation:

since it says angle F and angle E are equal, sides DF and DE are also equal by isosceles triangle property.

2x=3x-5

3x-2x=5

X=5

therefore;

DF= 2x = 2•5 =10

DE = 3x-5 = 3•5-5 = 15-5 = 10

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