" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
= 1.175,616 cm^2
s²=r²+t²=12²+15²=369
s=√369=19,2
Lp=πr (r+s)=3,14.12(12+19,2)=37,68(31,2)=1175,6 cm²