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dit:r=...?
JAWAB.
Vk=r³
r=∛2.197cm³
r=13cm
15) dik: tabung
t=100cm
v= 15.400cm³
= 22/7
dit: L alas dan r=...?
JAWAB
Vtabung=Lalas×t
15.400cm³=Lalas×100cm
*)Lalas=154cm²
*) Lalas=r²
r²=154cm²×7/22
r²=49cm²
r=√49cm²
r=7cm