Question

Tolong bantuanya semua nomer

Answer 1

A/sin A = b/sin B
a sin B = b sin A
6akar2/2 = b 1/2
6 akar 2 = b

4akar2/sin A =8/(akar 2 / 2)
8 sin A = 4
sin A = 1/2
arcsin (0.5) = 30
tan 30 = akar3 /3

c^2 = a^2 + b^2 - 2ab cosC
c^2 = 4 + 18 - 6
c^2 =16
c= 4