a Hitunglah volume bangun tersebut
b.Hitunglah luas bangun tersebut
b.Hitunglah luas bangun tersebut
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a.Volume
V Kerucut
=1/3xπxr²xt
=1/3x22/7x21x21x30
=13.860
V Tabung
=πxr²xt
=22/7x21x21x21
=29.106
V Setengah Bola
=2/3xπxr³
=2/3x22/7x21x21x21
=19.404
b.Luas
L Kerucut
=πxrx(r+s)
=22/7x21x(21+30)
=3.366
L Tabung
=2xπxrx(r+t)
=2x22/7x21x(21+21)
=5.544
L Setengah Bola
=2xπxr²
=2x22/7x21x21
=2.772
MAAF KLO ADA SALAH