Question

Dik : tabung(dgn tutup)
r : 10dm
l. seluruhnya : 1.885 dm 3
tentukan tingginya

Answer 1

Lp = 2πr (r + t)
1.885 = 2 × 3,14 × 10 (10 + t)
1.885 = 62,8 (10 + t)
10 + t = 1.885/62,8
10 + t = 30,02 = 30
t = 30 - 10
t = 20