" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a²√3 = 20√3
3a²= 60
a² = 20
a =2√5
Obwód = a+2a+a√3 = 2a+a√3=
4√5+2√8