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Tentukan panjang AG dari sebangun berikut.

Tentukan panjang AG dari sebangun berikut.

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Jawaban:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E G squared end cell equals cell E F squared plus F G squared end cell row blank equals cell 5 squared plus 5 squared end cell row blank equals cell 25 plus 25 end cell row blank equals 50 row blank blank blank row cell E G end cell equals cell plus-or-minus square root of 50 end cell row cell E G end cell equals cell plus-or-minus 5 square root of 2 end cell end table end style 

Karena rusuk bangun ruang tidak mungkin negatif, maka begin mathsize 14px style E G equals 5 square root of 2 end style 

 table attributes columnalign right center left columnspacing 0px end attributes row cell size 14px A size 14px G to the power of size 14px 2 end cell size 14px equals cell size 14px A size 14px E to the power of size 14px 2 size 14px plus size 14px E size 14px G to the power of size 14px 2 end cell row blank size 14px equals cell size 14px 10 to the power of size 14px 2 size 14px plus begin mathsize 14px style left parenthesis 5 square root of 2 right parenthesis end style to the power of size 14px 2 end cell row blank size 14px equals cell size 14px 100 size 14px plus size 14px 50 end cell row blank size 14px equals size 14px 150 row blank blank blank row cell size 14px A size 14px G end cell size 14px equals cell size 14px plus-or-minus square root of size 14px 150 end cell row cell size 14px A size 14px G end cell size 14px equals cell size 14px plus-or-minus size 14px 5 square root of 6 end cell end table 

Karena rusuk bangun ruang tidak mungkin negatif, maka begin mathsize 14px style A G equals 5 square root of 6 end style 

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