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      <title>6A10 Hình thang cân  by Vương Thị Thu Thủy</title>
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      <description>Nêu cách tính chu vi, diện tích hình thang em đã biết ở Tiểu học</description>
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      <pubDate>2021-11-05 03:36:00 UTC</pubDate>
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         <title>Mai khanh</title>
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         <title>Vũ Bảo Châu</title>
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         <pubDate>2021-11-08 10:25:22 UTC</pubDate>
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         <title>Phạm Đăng Khoa </title>
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         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1874728346</link>
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         <pubDate>2021-11-08 11:35:06 UTC</pubDate>
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         <title>Cao Danh Uy</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1874736737</link>
         <description><![CDATA[<div>công thức tính chu vi và diện hình thang là :<br>p=(2xa)+b+c<br>c1 s=(a+b)x h : 2<br>c2 s=h :(s x 2) : ( a+b)<br><br></div>]]></description>
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         <title>Chu Khánh Như</title>
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         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1874798375</link>
         <description><![CDATA[p=(2xa)+b+c
<br>c1 s=(a+b)x h : 2
<br>c2 s=h :(s x 2) : ( a+b)]]></description>
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         <pubDate>2021-11-08 12:08:26 UTC</pubDate>
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         <title></title>
         <author>21a10toanngodat1104</author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1874839300</link>
         <description><![CDATA[<div><strong><br><br>*Chu vi : P&nbsp;<br>&nbsp;*Diện tích : S&nbsp;<br>&nbsp;( a, b: đáy lớn, đáy nhỏ; h: chiều cao; c và d: hai cạnh bên )<br><br>-Công thức tính chu vi hình thang cân<br>P = (2 x a) + b + c<br><br>-Công thức tính diện tích hình thang<br>S = ( a + b ) . h : 2</strong></div><div><br><strong><em>*Bài thơ nói về công thức tính diện tích hình thang:</em></strong><strong><br></strong><em>Muốn tính diện tích hình thang</em></div><div><em>Đáy lớn đáy nhỏ ta đem cộng vào<br>Cộng vào nhân với chiều cao</em></div><div><em>Chia đôi lấy nửa thế nào cũng ra<br></em><br></div>]]></description>
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         <pubDate>2021-11-08 12:27:40 UTC</pubDate>
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         <title>Hồng Vân</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1874863100</link>
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         <pubDate>2021-11-08 12:37:37 UTC</pubDate>
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         <title>Ngô Tuấn Anh</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1874886617</link>
         <description><![CDATA[<div>Công thức tính chu vi , diện tích hình thang :&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<br>P = ( 2 x a ) + b + c&nbsp;<br>C1 : S= ( a + b ) x h : 2&nbsp;<br>C2&nbsp;: S= h : ( s x 2 ) : ( a + b ) </div>]]></description>
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         <pubDate>2021-11-08 12:47:28 UTC</pubDate>
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         <title>Nguyễn Khánh Vy - 6A10</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1875055408</link>
         <description><![CDATA[<div>Cách tính Chu vi hình thang cân:&nbsp;<br>P = a + b + c + d&nbsp;<br>hoặc (a + b) + 2 . c (vì c = d)<br>Cách tính Diện tích hình thang cân:&nbsp;<br>S =h .&nbsp;[(a + b)/2]<br>Trong đó:&nbsp;<br>&nbsp;P là chu vi<br>&nbsp;S là diện tích<br>&nbsp;a là độ dài đáy nhỏ<br>&nbsp;b là độ dài của đáy lớn<br>&nbsp;c và d là độ dài hai cạnh bên<br>&nbsp;h là chiều cao</div>]]></description>
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         <pubDate>2021-11-08 13:42:01 UTC</pubDate>
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      <item>
         <title>Quý Trang </title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1875238458</link>
         <description><![CDATA[<div>p=(2×a)+b+c<br>C1s=(a+b)×h÷2<br>C2=h÷(S×2):(a+b)<br><br><br></div>]]></description>
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         <pubDate>2021-11-08 14:33:22 UTC</pubDate>
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      <item>
         <title>Thảo</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1875335609</link>
         <description><![CDATA[<div>P=(2xa)+b+c<br>C1=(a+b)x h:2<br>C2=h:(Sx2):(a+b)</div>]]></description>
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         <pubDate>2021-11-08 15:00:01 UTC</pubDate>
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      <item>
         <title>Xuân Phú</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1875435426</link>
         <description><![CDATA[<div>p=(2 x a)+b+c<br>C1 S=(a+b)x h :2<br>C2 S=h : (s x 2) : (a+b)</div>]]></description>
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         <pubDate>2021-11-08 15:28:14 UTC</pubDate>
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         <title>Lê Quang Minh</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1877471948</link>
         <description><![CDATA[<div>P= (2. a)+ b+ c<br>C1 s= (a+ b). h : 2<br>C2 s=(s . 2) : (a + b)</div>]]></description>
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         <pubDate>2021-11-09 07:07:42 UTC</pubDate>
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      <item>
         <title>linh giang </title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1877826765</link>
         <description><![CDATA[<div>p=(2×a)+b+c<br>C1s=(a+b)×h÷2<br>C2=h÷(S×2):(a+b)</div>]]></description>
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         <pubDate>2021-11-09 10:18:30 UTC</pubDate>
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         <title>Nguyễn Bảo Dương</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1878117178</link>
         <description><![CDATA[<div>cách tính chu vi, diện tích hình thang là :<br>P= (2. a)+ b+ c<br>C1 s= (a+ b). h : 2<br>C2 s=(s . 2) : (a + b)</div>]]></description>
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         <pubDate>2021-11-09 12:54:03 UTC</pubDate>
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         <title>Bùi Thái san</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1878269767</link>
         <description><![CDATA[<div>P = ( 2 x a ) + b + c&nbsp;<br>C1 : S= ( a + b ) x h : 2&nbsp;<br>C2 : S= h : ( s x 2 ) : ( a + b )</div>]]></description>
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         <pubDate>2021-11-09 13:45:41 UTC</pubDate>
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         <title></title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1878275292</link>
         <description><![CDATA[<div>Con Nghiêm Đức Trung Kiên</div>]]></description>
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         <pubDate>2021-11-09 13:47:22 UTC</pubDate>
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         <title>Trần Tùng Lâm</title>
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         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1878327250</link>
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         <pubDate>2021-11-09 14:02:47 UTC</pubDate>
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         <title>Mai Đình Minh Hưng</title>
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         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1878420579</link>
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         <pubDate>2021-11-09 14:29:13 UTC</pubDate>
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         <title>39. Thu Trang</title>
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         <pubDate>2021-11-10 03:10:32 UTC</pubDate>
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         <title>Khả Trân </title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1880357167</link>
         <description><![CDATA[<div>P=(2 x a )+b+c<br>C1s =(a+b) x h :2<br>c2 =h : (S x2 ) :(a+b)</div>]]></description>
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         <pubDate>2021-11-10 04:54:19 UTC</pubDate>
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         <title>Nguyễn Ngọc Phụng</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1880918205</link>
         <description><![CDATA[<div>P=(2xa)+b+c<br>C1 S=(a+b).h:2<br>C2 S=h:(s.2):(a+b)</div>]]></description>
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         <pubDate>2021-11-10 10:37:20 UTC</pubDate>
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         <title>S=diện tích</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1883316016</link>
         <description><![CDATA[<div><strong>P=chu vi<br></strong>P=a + b + (2 x c) (trong đó, a, b là chiều dài 2 cạnh đáy của hình thang và c là chiều dài cạnh bên của hình thang.<br>S=(đáy lớn+đáy nhỏ)× chiều cao÷2.<br>Có bài thơ tính diện tích hình thang:<em><br>'Muốn tính diện tích hình thang</em></div><div><em>Đáy lớn đáy nhỏ ta đem cộng vào</em></div><div><em>Cộng vào nhân với chiều cao</em></div><div><em>Chia đôi lấy nửa thế nào cũng ra'</em></div><div><strong>Nguyễn Hương Giang<br></strong><br></div>]]></description>
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         <pubDate>2021-11-11 05:07:31 UTC</pubDate>
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         <title>linh</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1883671313</link>
         <description><![CDATA[<div>cách tính chu vi hình thang là:&nbsp;<br>P = ( 2xa) + b + c&nbsp;<br>cách tính diện tích hình thang là :<br>C1 : S = (a+b) x h : 2<br>C2 : S = (s,2) : (a+b)&nbsp;<br><br></div>]]></description>
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         <pubDate>2021-11-11 08:46:53 UTC</pubDate>
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         <title>Trần Hồng Anh</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1884751627</link>
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         <pubDate>2021-11-11 17:30:27 UTC</pubDate>
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         <title>bao Truc</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1887934088</link>
         <description><![CDATA[<div>P=( 2 x a ) +b + c<br>C1a= ( a+b ) x h : 2<br>C2 = h : ( S x 2 ) : ( a+b )<br><br><br></div>]]></description>
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         <pubDate>2021-11-13 06:46:09 UTC</pubDate>
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         <title>Cao Danh Uy</title>
         <author></author>
         <link>https://padlet.com/thuyvuongthithu/Bookmarks/wish/1889326700</link>
         <description><![CDATA[<div>P= a+ b+ 2x c<br>a: cạnh đáy bé<br>b: cạnh đáy lớn<br>c: cạnh bên<br>P: chu vi.<br>S= ( a+b)x h: 2<br>S: diện tích<br>a: cạnh đáy bé<br>b: cạnh đáy lớn<br>h: chiều cao.</div>]]></description>
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         <pubDate>2021-11-14 15:11:58 UTC</pubDate>
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