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30-10-2020
Mathematics

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Is my calculation for finding the measure of the angle is right?

Is my calculation for finding the measure of the angle is right class=

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30-10-2020

Answer:

Yes

Step-by-step explanation:

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30-10-2020

Yes it is, as proof, if we subtract 9 from 109 and 89, we get 100 and 80, and if we add them up, we get 180, which is the angular value of a straight line

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