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V=1/3.luas alas.tinggi
2.512=1/3.3,14.r.r.24
2.512.3.100/314=r.r
100=r.r
10=r
phytaghoras:
tinggi=24
jari-jari=10
jadi garis pelukisnya=26
luas permukaan=luas alas+luas selimut
Lp=(3,14.r.r)+(3,14.r.s)
Lp=(3,14.10.10)+(3,14.10.26)
Lp=314+4082/5
Lp=314+816,4
Lp=1130,4