Jawabanmu

Jawaban paling cerdas!
2014-09-07T08:55:31+07:00
S²=r²+t²
s²=10²+30²
s=√100+900
s=√1000
s=10√10cm

L= L sisi alas + L selimut kerucut
=π.r² + π.r.s
=π.r(r+s)
=3,14.10(10+10√10)
=31,4.20√10
=628√10cm²
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