semuanya yg baik hati tolong dijawab ya no5-10

5. 360 - (75×2) : 2
= (360 - 150) : 2
= 210 : 2
= 105°
= EFG
FGH
= 75°
6. 11 & 21
7. W = J : K
= 150 km : 60 km/jam
= 2,5 / 2 jam 30 menit
= 08.50 - 2 jam 30 menit
= 06.20
8. A = 24
B = 40
C = 60