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fubowangkevin
30.07.2019 •
Mathematics
3times the complement of an angle is 30 more than the supplement of the original angle. what is the measure of the angle? 15° 30° 60° 90°
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Ответ:
90-x (The complement of the angle)
180-x (The sumplement of the angle)
"x" is the angle that you want to calculate.
2. Then, you have:
3(90-x)+30=180-x
(270-3x)+30=180-x
300-3x=180-x
300-180=-x+3x
120=2x
120/2=x
x=60°
What is the measure of the angle?
The answer is: The measure of the angle is 60°.
Ответ:
answer:
the second one