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Mathematics 8 Online
OpenStudy (88):

What is the perimeter of this octagon? m Polygon 4.6m by 6.2m by 5.5m by 5.7m by 6.2m by 6.7m by 6.2m by 5.3m - assessment graphic

OpenStudy (♪chibiterasu):

Are those all the lengths of the sides?

OpenStudy (88):

yes

OpenStudy (♪chibiterasu):

add them up

OpenStudy (88):

ok

OpenStudy (88):

41.1

OpenStudy (♪chibiterasu):

Not quite

OpenStudy (♪chibiterasu):

add them again,

OpenStudy (♪chibiterasu):

You forgot the last number

OpenStudy (88):

46.4

OpenStudy (♪chibiterasu):

thats your perimeter

OpenStudy (88):

thx

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