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15-11-2018
Mathematics

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What is the value of x

What is the value of x class=

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15-11-2018

the sum of the interior angles of an n gon is (n-2)*180

since this has 5 sides, n=5 so (5-2)*180=540 degrees

thereore

540=5x+10+7x+25+6x-15+10x+7x-5

solve for x

540=35x+15

525=35x

15=x

x=15 degrees

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