Diketahui jari-jari alaskerucut 6 cm dan tingginya 8 cm. jika phi=3,14 maka tentukan : a.panjang apotema b.luas selimut tabung c.luas sisi tabung gue kasih poin banyak nih:3
pristianti
A. s² = t² + r² = 8² + 6² = 64 + 36 = 100 = √100 = 10 cm b. ls kerucut = rs = 3,14.6.10 = 188,4 cm² c. lp = r(r+s) = 3,14.6.(6+10) = 3,14.6.16 = 301,44 cm² d. V = 1/3r²t = 1/3.3,14.6.6.8 = 301,44 cm³
b. ls kerucut = rs = 3,14.6.10 = 188,4 cm²
c. lp = r(r+s) = 3,14.6.(6+10) = 3,14.6.16 = 301,44 cm²
d. V = 1/3r²t = 1/3.3,14.6.6.8 = 301,44 cm³