tolong dibantu pake caranya

Jawab :

No 14
1,56ca+132dm^2-600cm^2
= 15600cm^2+13200-600
= 28200cm^2

No 15
1 truk = 15 kuintal
8 truk = 8 × 15 kuintal
8 truk = 120 kuintal = 12 ton

No 16
Kecepatan = Jarak × Waktu
Kecepatan = 10km × ( 06.45 - 05.30 )
Kecepatan = 10km × 01.15
Kecepatan = 8 km/jam

No 17
12meter - 50dm - 600cm
= 1200 - 500 - 600
= 100 cm

Semoga membantu ^^

21

K = a + b + c + d
K = 36 + 21 + 24 + 21
K = 102 cm

22.

L = 1/2 × π r^2
L = 1/2 × 3,14 × 10^2
L = 1/2 × 314
L = 157 cm2