Homework Help: Math

Posted by Sandy on Sunday, September 23, 2012 at 10:14am.

Skanda wants to tack four posters on the bulletin board.he will tack the four corners of each poster,overlapping the sides of each poster a little. What is the least number os tacks that skanda can use?

Math - Monica, Sunday, September 23, 2012 at 10:41am
I drew a diagram to figure it out and it seems that 9 tacks might be the least.

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