" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(Pxl)-( phi r²)
=60x20-(.3,14.20.20)
=(2400) - (x 3,14 x 20x20)
=(2400) - (3,14x10x20)
=2400-628
=1772cm²