" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
π x r² = 628
r² = 628 / π
r² = 628 /3,14
r² = 200
r = √200
r = 14,14 cm
mencari jari-jari = 628: 3,14 (phi)
r x r = 200
r = 10√2