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2. Hitunglah keliling dan luas persegi panjang dan lebar
a. misalkan sisi= 4cm ; maka keliling = 4 X S = 4 x 4 = 16cm
b. misalkan sisi = 7cm ; maka keliling = 4 x s = 4 x 7 = 28 cm
c. misalkan sisi = 10cm maka keliling = 4 x 10 = 40cm
3.
a. misalkan sisi = 20cm maka keliling = 4 x s = 4 x 20 = 80 cm
b. misalkan sisi = 6cm
maka luas = s x s = 6 x 6 = 36 cm kuadrat
4.
a. misalkan panjang = 4cm ; lebar = 6cm
keliling = 2 x ( p + L) = 2 ( 4+6)
keliling = 2 x 10 = 20cm
b. misalkan panjang = 4cm ; lebar = 6cm
maka luas = p x L = 6 x 4
luas= 24 cm kuadrat