" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1/3 πr²t = 314
1/3 x 3,14 x 5² x t = 314
t = 12
s² = t² + r²
s² = 12² + 5²
s² = 144+25
s² = 169
s = 13 cm