Materi : Bangun Ruang Sisi Lengkung Kelas : IX Penyelesaian :
※Diameter Bola = 21 mm ※Tinggi Kerucut = 21 mm
★Volume Bandul = Volume Kerucut + Volume 1/2 Bola Volume = (1/3 x phi x r² x t) + (2/3 x phi x r^3) Volume = (1/3 x 22/7 x 21/2 x 21/2 x 21) + (2/3 x 22/7 x 21/2 x 21/2 x 21/2) Volume = 2425,5 + 2425,5 mm^3 Volume = 4851 mm^3.
Verified answer
Materi : Bangun Ruang Sisi LengkungKelas : IX
Penyelesaian :
※Diameter Bola = 21 mm
※Tinggi Kerucut = 21 mm
★Volume Bandul = Volume Kerucut + Volume 1/2 Bola
Volume = (1/3 x phi x r² x t) + (2/3 x phi x r^3)
Volume = (1/3 x 22/7 x 21/2 x 21/2 x 21) +
(2/3 x 22/7 x 21/2 x 21/2 x 21/2)
Volume = 2425,5 + 2425,5 mm^3
Volume = 4851 mm^3.