問以圖形周界

2010-11-30 3:57 am

回答 (5)

2010-12-10 1:16 am

✔ 最佳答案

圖片參考：http://imgcld.yimg.com/8/n/HA00806376/o/701011290116513873418320.jpg

8+8+8+4+4+4+4
=8x3+4x4
=24+16
=40(cm)
so,周界=40(cm)
A:40cm

參考: me

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2010-11-30 4:16 am

8/2(求到等邊三角形的邊長) x 4(有四條) + 8 x 3(三條正方形邊長)
= 4 x 4 + 8 x 3
= 16 + 24
= 40

anwser = A

2010-12-05 19:16:38 補充：
" / " = 除

參考: me

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2010-11-30 4:06 am

the answer is A because 8+8+8+4 times2 and 4times 2 equal to 40.

參考: me

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2010-11-30 4:04 am

[ 檢舉 ] A:40CM ~~~!!!!

參考: jackelwong95 ( 小學級 5 級 )

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2010-11-30 4:00 am

A:40CM ~~~!!!!

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