Question

Volume tabung 1.540 cm3 jika tinggi tabung 10 cm maka diameternya

Answer 1

V tabung =phi x t x r"
1540 = 22/7 x 10 x r''
1540 x 7/22  =  10 x r''
r'' = 490/10 
r'' =  49
r = 7
d= 14

Answer 2

Vt= La×t
1540=La×10
La=1540:10
La=154
La=1/4×π×d²
154=1/4×22/7×d²
154=22/28×d²
154×28=22×d²
4312:22=d²
196=d²
d=√196
d=13