20 * 40 * x ----> 42
1 -----> 1,4
800x * 1,4 = 42
1120x = 42
x = 0,0375m
0,0375m=3,75cm !
proszę :)
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20 * 40 * x ----> 42
1 -----> 1,4
800x * 1,4 = 42
1120x = 42
x = 0,0375m
0,0375m=3,75cm !
proszę :)