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Free_Kalibri [48]

2 years ago

6

The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 4x + 20,

and the other angle measures 40. 5 7.5 15 30

1 answer:

slamgirl [31]2 years ago

7 0

the angles added up are 180°, so:

180°= 4x+20°+40°

180°-20°-40°=4x

120°= 4x

120°/4=x

30°=x

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