19.8k views
15 votes
Pls help................

Pls help................-example-1
User Sebdelsol
by
4.5k points

1 Answer

14 votes
hi i got 9cm
i replaced each block with the variable x
i set the first line of blocks equal to the second line of blocks
then solved for x
x=9
Pls help................-example-1
User Killjoy
by
4.6k points