Materi TRIGONOMETRIyang bisa atau ada info tolong komentar ya...jika diketahui segitiga ABC siku-siku di B, panjang AC = 10cm dan sudut A = 30 derajat. Tentukan panjang AB dan BC!
tribeking22
Sin 30° = BC/AC 1/2 = BC/10 BC = 1/2 × 10 BC = 5 cm
cos 30° = AB/AC 1/2√3 = AB/10 AB = 1/2√3 × 10 AB = 5√3 cm
1/2 = BC/10
BC = 1/2 × 10
BC = 5 cm
cos 30° = AB/AC
1/2√3 = AB/10
AB = 1/2√3 × 10
AB = 5√3 cm