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d=6 cm maka r = 3 cm
t=4cm
panjang peluruh / tinggi tabung = 17 cm
dit: luas permukaan peluru
jawab:
luas tabung tanpa tutup + luas selimut kerucut
LTTT= π r (r+2t)
=3,14 x 3 (3+2x4)
=9,42 x 11
=103,62 cm^2
s^2=r^2+t^2
=3^2+4^2
=9+16
=akar 25
s=5 cm
LST = π r s
=3,14 x 3 x 5
=47,1
luas bangun = 103,62+47,1 = 150,72 cm^2
Mohon Rating :D