Question

Tolong kerjakan 1 sampai 5 dgn jalanya yg bisa ia cerdas

Answer 1

1.πr²t
 = 3,14.10².40
 =12560

3..πr²t
 = 22/7.7².10
 =1540

maaf hanya segini saja

Answer 2

1. V = 3,14*10²*40
       = 12.560 cm³
2. V = 22/7*r²*12
16.632 = 22/7*r²*12
16.632*7/264 = r²
√441 = r²
21cm = r
3.V= 22/7*7*7*10
     = 1.540 cm³    
4. V = 150*20
       = 3.000 cm³
5.V =3,14*5*5*t
785 = 3,14*5*5*t
785/78,5 = t
10 cm = t