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Panjang sisi PR pada gambar adalah ....

  1. begin mathsize 14px style square root of 3 space cm end style 

  2. 3 square root of size 14px 3 size 14px space size 14px cm 

  3. 4 square root of size 14px 3 size 14px space size 14px cm 

  4. 6 square root of size 14px 3 size 14px space size 14px cm 

R. RGFLLIMA

Master Teacher

Jawaban terverifikasi

Jawaban

Jawaban yang benar adalah C

Pembahasan

Perbandingan panjang sisi segitiga siku-siku di atas adalah:

begin mathsize 14px style SQ over QR equals fraction numerator square root of 3 over denominator 2 end fraction end style dan begin mathsize 14px style QR over PR equals 1 half end style 

maka:

table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator 3 space cm over denominator size 14px QR end fraction end cell size 14px equals cell fraction numerator square root of size 14px 3 over denominator size 14px 2 end fraction end cell row cell size 14px 3 size 14px space size 14px cm size 14px times size 14px 2 end cell size 14px equals cell square root of size 14px 3 size 14px times size 14px QR end cell row cell fraction numerator size 14px 6 size 14px space size 14px cm over denominator square root of size 14px 3 end fraction end cell size 14px equals size 14px QR row cell size 14px 6 over size 14px 3 square root of size 14px 3 size 14px space size 14px cm end cell size 14px equals size 14px QR row cell size 14px 2 square root of size 14px 3 size 14px space size 14px cm size 14px space end cell size 14px equals size 14px QR end table 

dan:begin mathsize 14px style QR over PR equals 1 half end style maka:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator 2 square root of 3 space cm over denominator PR end fraction end cell equals cell 1 half end cell row PR equals cell 2 square root of 3 space cm times 2 end cell row blank equals cell 4 square root of 3 space cm end cell end table end style

Oleh karena itu, Jawaban yang benar adalah C

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