Answer:
Assuming these are angles of a triangle, angel F should equal 78.
Explanation:
All angles of any triangle add up to 180 degrees. 180-28-74=78.
78 degrees
Assuming you are talking about a triangle, you would add 28 and 74 to get 102. Then subtract from 180.
28+74=102
180-102=78
Hope this helps :-)
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