Answer:
[tex]\mathbf{DE=11}[/tex]
Step-by-step explanation:
given AD = DB , means D is the midpoint of AB
given AE = EC , means E is the midpoint of AC
MID POINT THEOREM
In a triangle ABC, if D and E is the midpoint of side AB and AC respectively.
Then DE is parallel to BC and length of DE is half of length of BC.
[tex]\mathbf{DE=\frac{1}{2}BC}[/tex]
BC = 22 (given in the question)
[tex]\mathrm{DE=\frac{1}{2}\times22}[/tex]
[tex]\therefore\mathbf{DE=11}[/tex]
