" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
r= 10
P= 100 pi
pole= pi r2
20pi=2pi r/pi
20=2 r
2r=20/2
r=10
p= pi 10 kwadrat
p=100pi
2 pi*r=20 pi /: 2 pi
r= 10
P=pi r kwadrat
p=pi 10 kwadrat
P-100 pi
:)