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Perhatikan gambar berikut! Jumlah dari BF + EF + A B = ...

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Y. Herlanda

Master Teacher

Mahasiswa/Alumni STKIP PGRI Jombang

Jawaban terverifikasi

Pembahasan

Menghitung panjang EF Menghitung panjang BF Menghitung panjang AB Jadi,

Menghitung panjang EF

table attributes columnalign right center left columnspacing 0px end attributes row cell E F end cell equals cell square root of D F squared minus D E 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 cell 6 space cm end cell end table

Menghitung panjang BF

table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator B F over denominator D F end fraction end cell equals cell fraction numerator G F over denominator E F end fraction end cell row cell fraction numerator B F over denominator 10 end fraction end cell equals cell 3 over 6 end cell row cell 6 B F end cell equals 30 row cell B F end cell equals cell 5 space cm end cell end table

Menghitung panjang AB

table attributes columnalign right center left columnspacing 0px end attributes row cell A D end cell equals cell A E plus E D end cell row blank equals cell 4 plus 8 end cell row blank equals cell 12 space cm end cell row cell B D end cell equals cell B F plus F D end cell row blank equals cell 5 plus 10 end cell row blank equals cell 15 space cm end cell row cell A B end cell equals cell square root of B D squared minus A D squared end root end cell row blank equals cell square root of 15 squared minus 12 squared end root end cell row blank equals cell square root of 225 minus 144 end root end cell row blank equals cell square root of 81 end cell row blank equals cell 9 space cm end cell end table

Jadi,

table attributes columnalign right center left columnspacing 0px end attributes row cell B F plus E F plus A B end cell equals cell 6 plus 5 plus 9 end cell row blank equals cell 20 space cm end cell end table

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