" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
9)(2x2)+(6x2)=4+12=16
11)c
12)a
13)2x22/7x28=176
17)9420=2x3,14xr -> 9420/6,28=r -> r=1500
luas=3.14x1500x1500=7.065.000cm