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Strike441 [17]
4 years ago
9

Find the value of x for which ABCD must be a parallelogram

Mathematics
2 answers:
svp [43]4 years ago
6 0
Parallelograms have opposite sides that are equal, so you can set BC and AD equal to each other to find the value of x if the figure is a parallelogram. 
x + 3 = 2x - 1
3 = x - 1
4 = x

Now check
4 + 3 = 2(4) - 1
7 = 7

The value of x that makes ABCD a parallelogram is x = 4.

Hope this helps =)
Nezavi [6.7K]4 years ago
4 0
X+3=2x-1
x=2x-4
-1x=-4
x=4
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