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katrin2010 [14]
3 years ago
11

If a triangle has a corner that is 80° and the other is 40° what is the value of the third corner

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0
Answer: 60 degree
Explanation: The sum of the three interior angles of a triangle is always 180°.
180-80-40=60 degree.
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It seems that your options aren't correct as the right answer is -5.3333... (recurring)

Step-by-step explanation:

1)  2x + 4 = 20 + 5x   (subtract by the smallest unknown)

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    -20      -20    (now subtract each side by 20 as we want to leave the unknown on one side and another number on the other side.

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4) -5.33333... = x

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Trina has 72 collector’s stamps. She puts 43 of the stamps into a stamp book. How many stamps are left?
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Hi! For this question all you have to do is subtract 43 from 72.

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Hope this helps! Happy Thanksgiving!

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