Re: 一條繩子圍成的圓形和正方形哪個面積比較大?為
※ 引述《wei0503 (猴王)》之銘言：
: 一條繩子圍成的圓形和正方形哪個面積比較大?為什麼?
: 謝謝大家的幫忙
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: Sent from JPTT on my Asus ASUS_T00F.
Let rope length. L
For circle l=2pir. For square. L=4a
Area of circle=pir^2=l^2/4pi
Area of square=l^2/16
Done
The better question :what is the shape show the biggest area ?
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※ 編輯: Laoda245566 (140.112.25.99), 04/10/2015 11:02:23
推
04/10 11:02, , 1F
04/10 11:02, 1F
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04/10 11:06, , 2F
04/10 11:06, 2F
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04/10 11:07, , 3F
04/10 11:07, 3F
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04/10 12:47, , 4F
04/10 12:47, 4F
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04/10 12:47, , 5F
04/10 12:47, 5F
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04/10 12:49, , 6F
04/10 12:49, 6F
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04/10 12:49, , 7F
04/10 12:49, 7F
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04/10 12:50, , 8F
04/10 12:50, 8F
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04/10 12:51, , 9F
04/10 12:51, 9F
推
04/10 13:07, , 10F
04/10 13:07, 10F
※ 編輯: Laoda245566 (140.112.25.99), 04/10/2015 13:41:02
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