Jawabanmu

2014-08-21T01:49:27+07:00
Diket :
phi = 3,14
denah : kolam = 1:200
d denah = 4 cm, r denah = 2 cm
r kolam = 2 cm . 200 = 400 cm = 4 m
Ditanya : L kolam ?
Dijawab :
L kolam= phi . r . r
L kolam= 3,14 . 4m. 4m
L kolam= 50,24 m2 = 502.400 cm
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