[幾何] 國中數學
想請教一題:
如圖 http://imgur.com/a/rvZqN
AC=BD=4 AB=2
BG與CD夾45度
求長方形面積
要麻煩大家 謝謝~!
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06/18 23:51, , 1F
06/18 23:51, 1F
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06/18 23:52, , 2F
06/18 23:52, 2F
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06/18 23:56, , 3F
06/18 23:56, 3F
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06/18 23:56, , 4F
06/18 23:56, 4F
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06/19 00:11, , 5F
06/19 00:11, 5F
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06/19 00:11, , 6F
06/19 00:11, 6F
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06/19 00:11, , 7F
06/19 00:11, 7F
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06/19 00:11, , 8F
06/19 00:11, 8F
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06/19 00:11, , 9F
06/19 00:11, 9F
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06/19 00:20, , 10F
06/19 00:20, 10F
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