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masya89 [10]
3 years ago
8

The following quadrilateral is a parallelogram.

Mathematics
2 answers:
kompoz [17]3 years ago
7 0

Answer:

19 units

Step-by-step explanation:

In a parallelogram, opposite sides are congruent. So, we can set up a formula that looks like this: 3x - 8 = x + 10. When you solve for x, you'll get 9. 9 + 10 = 19 units

Novosadov [1.4K]3 years ago
5 0

Answer:

19

Step-by-step explanation:

first we have to figure out that x is 9 and then you add 9 plus 10 and you get 19

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