Answer:
Perpendicular
Step-by-step explanation:
Here, the slopes of the lines are 1 & -1
( they are same with opposite symbols) so, the lines are perpendicular
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Answer:5326
A=Pe^rt
13.4
AB =2DC
So, DC=AB/2
Now, AB/AC=DE/DC
AB/28=13/(AB/2)
AB²=13×28×2
AB=√728
AB=26.98
now, DC=AB/2
=13.4
