Ani memiliki drum berbenruk tabung dengan diameter alas 70 cm dan tinggi 80 cm. jika 3/4 drum itu diisi air. volume air adalah... A. 102,7 liter B. 154 liter C. 231 liter D. 304 liter
5dregensleyer
D = 70 cm = 7 dm r = 1/2 x 7 = 3,5 t = 80 cm = 8 dm volume = 3/4 x π x r² x t = 3/4 x 22/7 x 3,5 x 3,5 x 8 = 3 x 11 x 3,5 x 2 = 231 liter
= 7 dm
r = 1/2 x 7
= 3,5
t = 80 cm
= 8 dm
volume = 3/4 x π x r² x t
= 3/4 x 22/7 x 3,5 x 3,5 x 8
= 3 x 11 x 3,5 x 2
= 231 liter