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Ls tabung=2πrt
Lpkerucut= πr(r+s)
Ls=πrs
Lpprisma segitiga=2×Lalas×Kalas×tinggi
Lp limas segiempat Lalas+Lselimut
Ket
r=jari jari
t=tinggi
π=22/7 atau 3,14
s=garis pelukis