tes

1. KELAS VI A
MASWANTO, S.Pd.SD
Guru SD Negeri 013 Pematang Reba

2. 1. Macam – macam bangun datar
a. Persegi
L = s x s Contoh soal :
12 cm
L = 12 cm x 12 cm
= 144 cm 2
a. Persegi Panjang
L = p x l
Contoh soal :
12 cm
15 cm
L = 12 cm x 15 cm
= 180 cm2

3. c. Segitiga
L = ½ a x t Contoh soal :
16 cm
10cm
L = ½ .16 cm x 10 cm
L = 8 cm x 10 cm
L = 80 cm 2
c. Lingkaran
L = ∏ x r 2
Contoh soal :
14 cm
L = 22/7 x 7 2 cm
= 22/7 x 7 2 cm
= 22/7 x 7 cm x 7cm
= 22 x 1 cmx 7 cm
= 154 cm 2