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3 years ago

I need help finding the missing angle with work plz ANSWER ASAP!!!!!!

Mathematics

1 answer:

Gemiola [76]3 years ago

5 0

Answer:

The unknown angle is 80

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

Let the unknown angle be x

20+80+x = 180

Add like terms

100+x = 180

Subtract 100 from each side

100-100+x=180-100

x = 80

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2 years ago