Jawabanmu

2014-06-12T13:15:28+07:00
Dik sisi persegi= diameter lingkaran... kel lingkaran : 22/7 * 7= 22cm
2014-06-12T13:32:21+07:00
Klo diameter
keliling =nd
=22/7*7
22
klo jari jari
keliling =2×n×r
=2×22/7×7
=2×22
=44