Jawabanmu

2014-05-26T10:12:25+07:00
√1089 = 33
keliling = 33 x 4 = 132 cm
2014-05-26T11:27:54+07:00
L persegi = s²
1089 = s²
s =  \sqrt{1089}
s = 33 cm

kll = 4 . s
kll = 4 . 33
kll = 132 cm