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Can someone help me with this please?

Can someone help me with this please?-example-1
User Gcores
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2 Answers

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 Hi! The answer is ∠2 and ∠3 are not supplementary/
User Oherrala
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Note that m ∠ a means the measure of the angle a. With that notation you can write:

∠1 and ∠2 suplementary => m ∠1 + m ∠2 = 180°

∠1 and ∠3 suplementary => m ∠1 + m ∠3 = 180°

∠2 and ∠3 are corresponding and a || b => m ∠2 = m ∠3

=> m ∠2 = m ∠3 => ∠2 and ∠3 are congruent angles, which means that they have same shape and same size (measure)..

The notation for congruency is the equal sign = with the line ~ above it.

So, the answer is the second option.
User Tim Weber
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