1. 34 x 2 + 26 x 2 = 68 + 52 = 120 cm are perimetrul; 120 : 4 = 30 cm o latura
2. 42 x 2 + (42 + 16) x 2 = 84 + 58 x 2 = 84 + 116 = 200 cm are perimetrul; 200 :4 = 50 cm are latura
3. nu inteleg care-i latimea si care lungimea.
4. 2 x 2 + 5 x 2 x 2 = 4 + 20 = 24 dm are perimetrul; 24 : 4 = 6 dm are o latura