Tentukan tinggi sebuah tabung yang luas selimutnya 2288 cm2,dan keliling alasnya 176 cm.
gaok
K alas tabung = 2 x π x r 176 = 2 x 22:7 x r 176 = 44:7 x r 176 x 7 = 44 r 176 x 7 : 44 = r 28 = r LS = 2 x π x r x t 2288 = 2x 22/7 x 28 x t t = 2288 x 7 : 44 x 28 t = 16016 : 1232 t = 13
176 = 2 x 22:7 x r
176 = 44:7 x r
176 x 7 = 44 r
176 x 7 : 44 = r
28 = r
LS = 2 x π x r x t
2288 = 2x 22/7 x 28 x t
t = 2288 x 7 : 44 x 28
t = 16016 : 1232
t = 13