Jawabanmu

  • nald
  • Gemar Membantu
2014-06-06T18:49:38+07:00
D = 28 cm
r = 14 cm
L = 22/7 x 14 x 14 = 616 cm²
2014-06-06T18:50:33+07:00
L = phi r^2
L = 22/7 x 14 x 14
L = 616 cm2