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Kelas : VI SD
Dik : r : 9cm
t : 12cm
Dit : Luas kerucut...?
Jawab :
Lk = Π x r x s
s = √9²+12²
s = √81+144
s = √225
s = 15cm
Lk = Π x r x s
Lk = 3,14 x 9 x 15
Lk = 423,9 cm²
Semoga membantu :)