Pertanyaan

Tentukan panjang sisi yang ditunjukkan oleh huruf pada setiap gambar di bawah. f.

Tentukan panjang sisi yang ditunjukkan oleh huruf pada setiap gambar di bawah.

D. Enty

Master Teacher

Jawaban terverifikasi

Pembahasan

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell angle d end cell equals cell 180 degree minus 60 degree minus 90 degree end cell row blank equals cell 30 degree end cell row blank blank blank row cell fraction numerator d over denominator sin space angle d end fraction end cell equals cell fraction numerator c over denominator sin space angle c end fraction end cell row cell fraction numerator d over denominator sin space 30 end fraction end cell equals cell fraction numerator 20 over denominator sin space 90 end fraction end cell row cell fraction numerator d over denominator begin display style 1 half end style end fraction end cell equals cell 20 over 1 end cell row d equals 10 row blank blank blank row cell fraction numerator e over denominator sin space angle e end fraction end cell equals cell fraction numerator c over denominator sin space angle c end fraction end cell row cell fraction numerator e over denominator sin space 60 end fraction end cell equals cell fraction numerator 20 over denominator sin space 90 end fraction end cell row cell fraction numerator e over denominator begin display style 1 half square root of 3 end style end fraction end cell equals cell 20 over 1 end cell row e equals cell 10 square root of 3 end cell end table end style$