hitunglah nilai m yang memenuhi gambar tersebut

m/(sin 60°) = 10/(sin 45°)
m/(1/2 √3) = 10/(1/2 √2)
m/√3 = 10/√2
m = 10√3/√2 . √2/√2 = 10√6/2 = 5√6 cm

Rumus:
a/sinA = b/sinB = c/sinC

Diketahui:
a = 10 cm
α (sinA) = 45°
β (sinB) = 60°

Ditanya:
b (m) = ??

Jawab:
a/sinA = b/sinB
10/sin45° = m/sin60°
m = (10 x sin60°)/(sin45°)
m = (10 x 1/2√3)/(1/2√2) --------->> (coret "1/2")
m = 10√3/√2

Nilai "m" bisa diperkecil menjadi:
10√3/√2 x √2/√2
= 10√6/√4
= 10√6/2
= 5√6 cm