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Mathematics 6 Online
OpenStudy (anonymous):

The perimeter of a regular octagon is 96 cm and the side of a congruent regular octagon is 5x - 8 cm. Find the value of x.

jimthompson5910 (jim_thompson5910):

how many sides does an octagon have

OpenStudy (anonymous):

8

jimthompson5910 (jim_thompson5910):

so if the perimeter is 96, then the side length must be 96/8 = 12

jimthompson5910 (jim_thompson5910):

so 5x - 8 = 12 solve for x

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