Tolong beserta cara di ket{tiga tiga nya)

Tolong beserta cara di ket{tiga tiga nya)

Jawaban:

$3). : 66 = 2 times 3.14 times r \ r = frac{66}{6.28} = 10.5cm \ \ 4). : kp = 2 times 3.14 times 5 = 31.4cm \ kq = 2 times kp = 2 times 31.4 = 62.8cm \ 62.8 = 3.14 times dq \ dq = frac{62.8}{3.14} = 20cm \ \ 5). : 220m = 220 times 100 = 22.000cm \ 22.000 = ( frac{22}{7} times 70) times n \ 22.000 = 220cm times n \ n = frac{22.000}{220} = 100 : kali$