" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
113,040=4/3×3,14×R³
113,040×3=4×3,14×r³
339,120=12,56r³
r³=339,120/12,56
r³=27
r=∛27
r=3cm
Lp=4×π×r²
=4×3,14×3²
=113,04cm²