:
https://3andlib.xplainer.net/images/smilies/dj_17.gif
70cm =a
h=7cm
b=10cm
4cm
>>>>> <<<<<
==================================
>>>> :
-
:
V = L x l x h
2-
= + : ( ) .
=
= +
:
5 , 2 , 8 :
)
5 2 = 10 S(b) = 10cm
)
112 = 14 8 = ( 5+2 ) 28 S(l) = 112cm
) = 112+20=132 2
132 = 112 + 10 2 S(t) = 132cm
=========
>>>> :
:
=========
>>>> :
=========
>>>> :
70 10 7 =4900
4900 4=19600cm
=========
>>>> :
=========
b h a v v