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AleksAgata [21]
3 years ago
9

In parallelogram ABCD, what is DC?

Mathematics
2 answers:
telo118 [61]3 years ago
8 0

Answer:

Option C, 13. :)

Step-by-step explanation:

zepelin [54]3 years ago
3 0
This is a parallelogram which means the two opposites sides are equal. Then, we can solve the problem as shown below:
mAB = m DC
9x -14 = 3x + 4
Transpose and combine same term:
9x - 3x =4 +14
6x= 18
x=3

Solving for DC:
DC = 3X + 4 
DC = 3(3) + 4
DC = 13 units.

The answer is 13.

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