d. 8 cm
Penjelasan dengan langkah-langkah:
Dik : Ab = 4cm
Lb = 60°
Lc= 30°
Ditanya = Bc.......?
sin 30° = ab/bc
1/2 = 4/bc
bc = 4 ÷ ¹/2
bc = 4 × 2/1
bc = 8 cm (B.)
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d. 8 cm
Penjelasan dengan langkah-langkah:
Dik : Ab = 4cm
Lb = 60°
Lc= 30°
Ditanya = Bc.......?
sin 30° = ab/bc
1/2 = 4/bc
bc = 4 ÷ ¹/2
bc = 4 × 2/1
bc = 8 cm (B.)
# semoga membantu