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ditanyakan: a. d=...? b. Luas kerucut=...?
penyelesaian:
d=
=
= 4,8m.
= 4,8m.2
= 9,6m.
luas kerucut= phi.r(r+s)
= 3,14. 4,8(4,8.6)
= 3,14.51,84
= 162,7m.
maaf kalau salah:))))