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這有好幾種情況喲. 有1×24的,周長:(24+1)×2=50釐米 2×12,周長:(2+12)×2=28釐米 3×8的周長:(3+8)×1=22釐米 4×6的周長:(6+4)×2=20釐米 就這四種吧.
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