" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a²=9×4
a²=36
a=6
r=3
l=6
obliczam h
h²=6²-3²
h²=36-9
h=√27
h=3√3
v=⅓π×3²×3√3=9√3πj.³
pole=π×3²+π×3×6=9π+18π=27πj.²