" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
selisih 13-4=9
jarak pusat 15
caranya phytagoras yang sudah dihapalkan
p^2 = l^2 + (R-r)^2
p^2 = 12^2 + ( 13 -4)^2
p^2 = 144 + 81
p^2 = 225
p^2 = 15^2
p = 15 cm