Respuesta :
Answer:
DC = 13units
Step-by-step explanation:
For a square, all the sides are equal, hence;
AB = BC
x+6 = 2x-1
x-2x = -1-6
-x = -7
x =7
Also DC =AB
DC = x+6
DC = 7+6
DC = 13units
Hence the length of DC is 13units
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Answer: It's D
13 units
Step-by-step explanation: I got it right on the quiz