" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Bab Bangun RuangMatematika SMP Kelas VIII
r = d/2
r = 21/2
r = 10,5 cm
Tabung tanpa tutup
Luas permukaan = π . r . (r + 2t)
= (22/7) . 10,5 . (10,5 + 2 . 30)
= 33 . (10,5 + 60)
= 33 . 70,5
= 2.326,5 cm²
33 (630)
= 20.790
Maaf kalau saya salah hitung