Tolong jawab ya no 182.

Kelas 8 Matematika
Bab Bangun Ruang

r = d/2
r = 10/2
r = 5 cm

Tinggi kerucut = 17 - 5
Tinggi kerucut = 12 cm

Volume gabungan
= volume setengah bola + volume kerucut
= (1/2 . 4/3 . π . r . r . r) + (1/3 . π . r . r . t)
= (2/3 . 3,14 . 5 . 5 . 5) + (1/3 . 3,14 . 5 . 5 . 12)
= 785/3 + 942/3
= 1.727/3 cm³

Berat bandul
= 15 . 1.727/3 
= 8.635 gram