trigonometri
∆ABC
sisi depan sudut A = sisi a = 4 cm
sisi depan sudut C = sisi c = 6 cm
aturan sinus
a/sin A = c/sin C
sin C = sin A × c/a
sin C = sin 30° × 6/4
sin C = 1/2 × 6/4
sin C = 3/4
besar sudut C
= arcsin (3/4)
= 48,59° (pembulatan)
panjang c = 6 cm
panjang a = 4 cm
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Verified answer
trigonometri
∆ABC
sisi depan sudut A = sisi a = 4 cm
sisi depan sudut C = sisi c = 6 cm
aturan sinus
a/sin A = c/sin C
sin C = sin A × c/a
sin C = sin 30° × 6/4
sin C = 1/2 × 6/4
sin C = 3/4
besar sudut C
= arcsin (3/4)
= 48,59° (pembulatan)
panjang c = 6 cm
panjang a = 4 cm