BANTU JWB 60 POIN YG NO 2,3 DAN 4 SAJA ! THANK YOU​

Jawab:

2. V = πr²t

V = 3,14 x 20 x 20 x 27

V = 33.912 dm³

3. V = πr²t

9.240 = 22/7 x 14 x 14 x t

9.240 = 22 x 2 x 14 x t

9.240 = 616t

t = 9.240 / 616

t = 15dm

4. V = πr²t

2.826 = 3,14 x r² x 9

2.826 = 28,26r²

r² = 2.826 / 28,26

r² = 100

r = √100

r = 10cm