Ada yang bisa ngerjain tugas Matematika kelas 9 ini ga, Besok harus di kumpulin.
Materi Bangun Ruang Sisi Lengkung
permatapu3maharani
4) Dik : t =10cm r = 7cm Jawab : a) La = pi r^2 = 22/7.49 = 154cm b) Ls = 2 pi r t = 2.22/7.7.10 = 440cm^2 c) L tabung tanpa tutup = pi r (r+2t) = 22/7.7.27 = 594cm^2 d) Lp = 2 pi r (r+t) = 2.22/7.7.17 = 748cm^2
r = 7cm
Jawab :
a) La = pi r^2
= 22/7.49
= 154cm
b) Ls = 2 pi r t
= 2.22/7.7.10
= 440cm^2
c) L tabung tanpa tutup = pi r (r+2t)
= 22/7.7.27
= 594cm^2
d) Lp = 2 pi r (r+t)
= 2.22/7.7.17
= 748cm^2