Jawabanmu

2014-04-25T23:15:48+07:00
Lp = 2x22/7x7x25
 Lp = 1100 cm2

Smga membantu
2014-04-25T23:17:27+07:00
2\pi r(r+t)
2.22/7.14 (14+25 )
88(39)= 3432 cmkuadrat