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Mathematics 21 Online
OpenStudy (anonymous):

What is the perimeter of the following polygon?

OpenStudy (anonymous):

sam (.sam.):

|dw:1337268673175:dw| Pythagoras theorem

sam (.sam.):

\[\sqrt{15^2+8^2}=17\]

sam (.sam.):

|dw:1337268744652:dw| Add them up and you'll get

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