Bantuin dong, makasii! ​

Jawaban:

sin 30 = 1/2

1/2 =3/c

Penjelasan dengan langkah-langkah:

c = 3×2

= 6

b ^2=c^2 – a^2

= 6^2 – 3^2

= 36-9

= 25

b = 5