" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Pc=2*Pp+Pb
Pp=a*a
Pp=12*12=144cm2
Pb=(a*h)*4
Pb=(12*20)*4=240*4=960
Pc=288+960=1248cm2
v=144*20=2880cm3