" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a=13dm
b=9dm
h=?
13*9*h=1989
117h=1989 /:117
h=17
Wysokość graniastosłupa wynosi 17 dm
1989dm³=13dm*9dm*h
1989dm³=117dm²*h /÷117dm²
h=17dm