Calcule a primeira determinação positiva e o número de voltas completas na circunferência trigonométrica do arco de medida de 2080.

Step-by-step explanation:

First, we need to divide 2080° by 360°, because a circumference has a total of 360°.

Which means the dividend can be expressed as

Where

Therefore, the "primeira determinação positiva" is , where the number of complete laps is 5. In other words, .

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer