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File: /var/www/public_html/grid-nakita/application/libraries/Article_lib.php
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Function: _error_handler
File: /var/www/public_html/grid-nakita/application/controllers/Read.php
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Function: xplore
File: /var/www/public_html/grid-nakita/index.php
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Function: require_once
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Filename: libraries/Article_lib.php
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File: /var/www/public_html/grid-nakita/application/libraries/Article_lib.php
Line: 624
Function: _error_handler
File: /var/www/public_html/grid-nakita/application/controllers/Read.php
Line: 79
Function: xplore
File: /var/www/public_html/grid-nakita/index.php
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Function: require_once
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File: /var/www/public_html/grid-nakita/application/libraries/Article_lib.php
Line: 625
Function: _error_handler
File: /var/www/public_html/grid-nakita/application/controllers/Read.php
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Function: xplore
File: /var/www/public_html/grid-nakita/index.php
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Function: require_once
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File: /var/www/public_html/grid-nakita/application/libraries/Article_lib.php
Line: 626
Function: _error_handler
File: /var/www/public_html/grid-nakita/application/controllers/Read.php
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Function: xplore
File: /var/www/public_html/grid-nakita/index.php
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Function: require_once
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Filename: libraries/Article_lib.php
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File: /var/www/public_html/grid-nakita/application/libraries/Article_lib.php
Line: 626
Function: _error_handler
File: /var/www/public_html/grid-nakita/application/controllers/Read.php
Line: 79
Function: xplore
File: /var/www/public_html/grid-nakita/index.php
Line: 328
Function: require_once
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Message: Undefined property: stdClass::$id
Filename: libraries/Article_lib.php
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Backtrace:
File: /var/www/public_html/grid-nakita/application/libraries/Article_lib.php
Line: 638
Function: _error_handler
File: /var/www/public_html/grid-nakita/application/controllers/Read.php
Line: 79
Function: xplore
File: /var/www/public_html/grid-nakita/index.php
Line: 328
Function: require_once
1. Rumus Tabung
a. Luas alas atau tutup tabung = πr²
b. Luas tabung tertutup / Permukaan = ( ka x t ) + ( 2 x La )
= ( 2rt ) + ( 2 )
= 2 ( t + r )
c. Luas tabung tanpa tutup = ( ka x t ) + La
= 2rt +
= r ( 2t + r )
d. Volume tabung = La x t
= πr²t
e. Luas selimut tabung = ka x t
= 2 πrt
2. Rumus Kerucut
Volume kerucut = 1/3 x La x t
= 1/3 x πr² x t
= 1/3 πr² t
Luas selimut kerucut = 2πr / 2πs x πs2
= πrs
Luas sisi kerucut = πrs + πr²
= π r ( s + r )
Hubungan s, r , dan t pada kerucut :
s2 = r2 + t2
t2 = s2 – r2
r2 = s2 – t2
Source | : | Gridkids.id |
Penulis | : | Nita Febriani |
Editor | : | Nita Febriani |
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