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What is the value of n and the measure of 1?

What is the value of n and the measure of 1?-example-1

1 Answer

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Assuming that the figure is implying that angles 1 and 2 are the same, we have


11n=14n-18 \iff 3n=18 \iff n=6

So, the measure of angles 1 is


11\cdot 6=66

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