23-09-2019
Mathematics

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What is the value of x?

What is the value of x class=

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23-09-2019

Answer:

111

Step-by-step explanation:

A 7-sided polygon has internal angles that sum to ...

180°(n -2) . . . . for n=7

180°(7 -2) = 900°

The sum of the given angles is 789°, so the remaining one is ...

900° -789° = x° = 111°

x = 111

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