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the measures of two supplementary angles are a ratio of 2:4 what is the measure of the smallest angle?

1 Answer

5 votes
so supplementary means add up to 180

x+y=180
ratio is 2:4=1:2
1x=2y
subsitue
2y+y=180
3y=180
divide 3
y=60
that is the smaller angle isnce x is 2wice of y
60 degrees is the answer
User Rob Ruchte
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