" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
100 = 22/7 x r²
100 = 3,14 x r²
r² = 100/3,14
r = (akar dari 31,8) 5,6cm
d = r.2
d = 5,6.2
d= 11,2cm
K. lingkaran = 2πr
= 2 x 22/7 x 11,2
=70,4m