tolong jawab 31,31,33,34.pake caranya...

32)) cara = 74-32 = 42kg
33)) Kll = 2πr
462 = 2*3,14*r
462 = 6,28r
6,28r = 462,, r = 73,56
Luas = πr^
Luas = 3,14 * 73,56 * 73,56
Luas = 16.993,9
34)) V.kaleng = Luas alas x tinggi
luaa alas =πr^=3,14 x 10 x 10= 314
V = La x t
V = 314 x 25 = 7850

Jadikan jawaban terbaik tksss