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Pepsi [2]
2 years ago
12

Explain the Mistake

Mathematics
1 answer:
Nookie1986 [14]2 years ago
4 0

Answer:

Step-by-step explanation:

The two given angles are vertically opposite -- one opposite the other.

Vertically opposite angles are equal

5x = 100               Divide by 5

5x/5 = 100/5

x = 20

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