1/2(12 + 4) * 12 (ABCE)
- 1/2(4 * 3) (CFD)
- 1/2(12*9) (AFB)
= 36
1/2(12 + 4) * 12 (ABCE)
- 1/2(4 * 3) (CFD)
- 1/2(12*9) (AFB)
= 36
•
答案對,但你確定求兩塊非陰影三角形麵積時沒有用到初中的相似三角形?
-萬斤油-
♂
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()
03/29/2022 postreply
06:12:40
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確實用到了相似三角形的概念。我也不記得小學與初中的分界綫
-布衣之才-
♂
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()
03/30/2022 postreply
21:23:54
•
CFD應該是CFE
-yma16-
♂
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()
03/31/2022 postreply
10:05:14
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