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2014-05-03T17:38:46+07:00
L = s.s
16a = skuadrat
skuardat = akar 16
s = 4a

k = 4.s
k = 4.4
k = 16a
1 5 1
2014-05-03T17:39:19+07:00
S^2 = 16 a^2
s = 4a
keliling = 4s = 16 a cm