Roboguru

Perhatikan gambar berikut! Panjang  adalah ....

Perhatikan gambar berikut!

Panjang begin mathsize 14px style text AB end text end style adalah ....

  1. begin mathsize 14px style 24 square root of 2 end style 

  2. begin mathsize 14px style 12 square root of 2 end style 

  3. begin mathsize 14px style 8 square root of 2 end style 

  4. begin mathsize 14px style 6 square root of 2 end style 

  5. begin mathsize 14px style 4 square root of 2 end style 

Jawaban:

begin mathsize 14px style fraction numerator A B over denominator sin space 45 to the power of ring operator end fraction equals fraction numerator A C over denominator sin space 30 to the power of ring operator end fraction rightwards double arrow fraction numerator A B over denominator begin display style 1 half end style square root of 2 end fraction equals fraction numerator 8 space cm over denominator begin display style 1 half end style end fraction rightwards double arrow 1 half A B equals 4 square root of 2 space cm rightwards double arrow A B equals 8 square root of 2 space cm end style 

Jadi, jawabannya adalah C.

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