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Options are: 80 45 90 100
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5 votes
Options are:

80
45
90
100

Options are: 80 45 90 100-example-1
User JockX
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1 Answer

4 votes

=>x+45+45=180°

=>x+90=180°

=>x=180°-90°

=>x=90°

User Sinead
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7.5k points
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