6. Which of the following could be the angles of a triangle? A 450, 550, 1020 B 400, 450, 950 C 389, 380, 38 D 900, 800, 10​

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                    v

Step-by-step explanation:

First line them up an take the numbers like this for ex: x + x > x

Then continue to do that with different orders.

Finally, Important: make  sure the greater sign has to be like this: > not like this <. If it is = or < it is not a angle. Therefore you can find your answer.

idk

step-by-step explanation:

positive

step-by-step explanation:

the quadrant is facing upwards