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OpenStudy (anonymous):
Which of these three-dimensional objects has rotational symmetry about a line? rolling pin rectangular staircase holing pincer
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OpenStudy (anonymous):
|dw:1363034637940:dw| I don't think the staircase has rotational symmetry.
OpenStudy (anonymous):
|dw:1363034786566:dw| The rolling pin seems more likely.
OpenStudy (anonymous):
|dw:1363034911996:dw|
zepdrix (zepdrix):
|dw:1363038827547:dw|Yah the rolling pin certainly does :) Can it only be one of them? Is it like a multiple choice question where you choose ONE?
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