Question

Segitiga ABC panjang c 12√2 cm
Sudut A 105° dan sudut C 45°
Berapa panjang sisi b?

Answer 1

Besar sudut B = 180°-105°-45°
=> 30°

b/Sin B = c/sin C

=> b/½ = 12√2 / ½√2
=> ½√2b = 24√2
=> b = 24√2×2/√2
=> b = 48 cm

Panjang sisi B adalah 48 cm