" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)P=πr²
πr²=16m²
r²≈5
r≈√5
Obw=2πr
Obw=2*√5*3.14
Obw≈2*2.2*3.14
Obw≈13.816m
b)P=πr²
πr²=12m²
r²≈4
r=2
Obw=2πr
Obw≈12.56m
2.
TAK
Obw=40.82cm