" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
,b) p=+a+b+c/2 , p=45/2=22.5
P=√((22.5)(22.5-12)(22.5-15)(22.5-18))=√(354,375*22.5)≈89