luas dan keliling terima kasih!!

1) L = 22/7 × 14²
       = 22/7 × 14 × 14
       = 22 × 2 × 14
       =     616 cm²
    K = 22/7 × 28
       = 22 × 4
       = 88 cm
2) L = 3,14 × 32²
       = 3,14 × 32 × 32
       = 100,48     × 32
       =  3.215,36 cm²
    K = 3,14 × 64
       = 201,96 cm
3) L = 3,14 × 41²
       = 3,14 × 41 × 41
       = 3,14 ×  1.681
       = 5.278,34 cm²
    K = 3,14 × 82
       = 257,48 cm
4) L = 22/7 × 35²
       = 22/7 × 35 × 35
       = 22 × 5      × 35
       =   110        × 35
       =    3.850 cm²
    K = 22/7 × 70
       = 22     ×10
       =  220 cm