October 2018 1 50 Report
Sebatang kayu berbentuk tabung berjari-jari r dan tingginya t.Luas permukaan tabung tersebut dirumuskan....
a. L=r ( r+t)
b. L=2r (r+t)
c. L= r pangkat dua (1+t)
d. L= 2rpangkat dua (1+t)

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