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4 years ago

I need help with this, I don’t understand how to do this.

Mathematics

1 answer:

Fynjy0 [20]4 years ago

6 0

Answer:

x = 94

Step-by-step explanation:

The sum of the angles of a quadrilateral is 360

49+128+89+x = 360

Combine like terms

266 +x = 360

Subtract 266 from each side

266-266+x = 360-266

x =94

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