Odpowiedź :
r=5⅓cm=16/3
P=πr²
P=π*(¹⁶/₃cm)²=π*256/9cm²=28,(4)πcm²
Ob=2πr
Ob=2π*¹⁶/₃cm=³²/₉πcm=3⁵/₉πcm
P=πr²
P=π*(¹⁶/₃cm)²=π*256/9cm²=28,(4)πcm²
Ob=2πr
Ob=2π*¹⁶/₃cm=³²/₉πcm=3⁵/₉πcm
P = πr²
P = 3,14 × (5 ⅓)²
P = 89,32
L = 2πr
L = 2 x 3,14 x 5 ⅓
L = 33,49
P = 3,14 × (5 ⅓)²
P = 89,32
L = 2πr
L = 2 x 3,14 x 5 ⅓
L = 33,49