" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
919 = 4 . 3,14 . r²
r² = 919 : 12,56
r = √ 73,17 = 8,55 cm
d = 17,1 cm
Ls = 3,14 . 17,1 . 17,1
= 918,17 cm²