Hitunglah keliling dan luas daerah persegi panjang teesebut: A.Panjang: 1 m 20 cm Lebar : 1 m 10 cm B.panjang: 17 m 20 cm Lebar: 1 m 3 cm

A.
p = 1 m 20 cm = (100+20)cm = 120 cm
l = 1 m 10 cm = (100+10)cm = 110 cm
Keliling = 2(p+l)
= 2(120+110)
= 2(230) = 460 cm
Luas = p×l = 120×110 = 13200 cm²

B.
p = 1 m 20 cm = (100+20)cm = 120 cm
l = 1 m 3 cm= (100+3)cm= 103 cm
Keliling = 2(p+l)
= 2(120+103)
= 2(223) = 446 cm
Luas = p×l = 120×103 = 12360 cm²