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I need help on this and the first person who answer correctly gets a BRANLIST

(and please explain)​

I need help on this and the first person who answer correctly gets a BRANLIST (and-example-1

1 Answer

2 votes

Answer:

12 degrees

Explanation:

A triangle has 180 degrees and two of the angles are 78 and 90. 180 minus 168 equals 12.

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