Jawabanmu

2014-02-21T19:24:33+07:00
=706,5 : 500
= 1,4 M
KELILING = 1,4 M

keliling = 2 .π .r
140cm = 2 . 22/7 . r
r = 140 : 2. 22/7
r = 140 : 6,28
r = 22,2 cm
2014-02-21T21:15:30+07:00