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Search: BP304
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BP304 At least one (interior or exterior) right angle vs. no right angle (either interior or exterior).
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CROSSREFS

Adjacent-numbered pages:
BP299 BP300 BP301 BP302 BP303  *  BP305 BP306 BP307 BP308 BP309

KEYWORD

traditional, finishedexamples

WORLD

polygon_outline [smaller | same | bigger]

AUTHOR

"Lewis"

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