Jawabanmu

2014-06-03T20:29:25+07:00
Keliling roda:
=  \pi  × d
= 22/7 ×84
= 22×12
= 264 cm

banyak roda berputar:
= 13200÷264
= 50 kali
2014-06-03T21:46:52+07:00
Kll=pixd
=22/7x84
=22x12
=264cm
=2,64m

n=p/k
n=132/2,64
n=50kali