Bangun 2 (persegi)
Luas: L = s x s = 8 x 8 = 64 cm2
Keliling: K = 4 x s = 4 x 8 = 32 cm
Bangun 3 (persegi panjang)
Luas: L = p x l = 11 x 6 = 66 cm2
Keliling: K = 2 (p + l) = 2 (11 + 6) = 2 x 17 = 34 cm
Bangun 4 (persegi)
Luas: L = s x s = 12 x 12 = 144 cm2
Keliling: K = 4 x s = 4 x 12 cm = 48 cm
Bangun 5 (persegi panjang)