Roboguru

Hitunglah panjang !

Pertanyaan

Hitunglah panjang a comma space b comma space c!

Pembahasan Soal:

Mencari panjang a 

table attributes columnalign right center left columnspacing 0px end attributes row cell a over 8 end cell equals cell 2 over a end cell row cell a squared end cell equals 16 row a equals cell square root of 16 end cell row blank equals cell 4 space cm end cell end table

Mencari panjang b

table attributes columnalign right center left columnspacing 0px end attributes row cell b squared end cell equals cell a squared plus 2 squared end cell row blank equals cell 4 squared plus 2 squared end cell row blank equals cell 16 plus 4 end cell row blank equals 20 row b equals cell square root of 20 end cell row blank equals cell square root of 4 cross times 5 end root end cell row blank equals cell 2 square root of 5 space cm end cell end table

Mencari panjang c

table attributes columnalign right center left columnspacing 0px end attributes row cell c squared end cell equals cell 8 squared plus a squared end cell row blank equals cell 64 plus 4 squared end cell row blank equals cell 64 plus 16 end cell row blank equals 80 row c equals cell square root of 80 end cell row blank equals cell square root of 16 cross times 5 end root end cell row blank equals cell 4 square root of 5 space cm end cell end table

Jadi, panjang a equals 4 space cm comma space b equals 2 square root of 5 space cm comma space c equals 4 square root of 5 space cm.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 04 Mei 2021

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