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Diketahui d=18cm (r=9cm) , dan t=12cm maka
Luas.selimut = 3.14 x 9 x 15
423.9 cm2
semoga membantu
pi=3,14 r=9cm s=?
s= √12²+9² = √144+81 = √225 = 15cm
3,14x9x15 = 423,9 cm²
jadi jawabanny 423,9 cm²