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Diketahui panjang . Tentukan panjang !

Diketahui panjang begin mathsize 14px style P R equals 17 space cm comma space R S equals 10 space cm comma space Q R equals 8 space cm end style. Tentukan panjang size 14px P size 14px S!

Jawaban:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Q S end cell equals cell square root of R S squared minus Q R squared end root end cell row blank equals cell square root of 10 squared minus 8 squared end root end cell row blank equals cell square root of 100 minus 64 end root end cell row blank equals cell square root of 36 end cell row blank equals 6 row blank blank blank row cell P Q end cell equals cell square root of P R squared minus Q R squared end root end cell row blank equals cell square root of 17 squared minus 8 squared end root end cell row blank equals cell square root of 225 end cell row blank equals 15 row blank blank blank row cell P S end cell equals cell P Q minus Q S end cell row blank equals cell 15 minus 6 end cell row blank equals cell 9 space cm end cell end table end style

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