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My daughter and I were building a raised garden in the yard and we discussed the sizes to build it. After a few different sizes discussed, we both noticed a problem. Now, this may be simple math, but I just can't wrap my brain around this one. Please explain it to me so I can explain it to her. Please bare with me, as I'm a "Yank" and use feet and square feet.Here goes:I have two boards that are 8 feet long. If I make the garden square with 4 sides of 4 feet, I have a surface area to plant in of 16 square feet. If we go with cutting the boards at 5 feet with a 3 foot remainder, we have a 3 foot by 5 foot garden. Now we have 15 square feet to plant in. 2 foot by 6 foot = 12 square feet. etc. etc.How does the surface area change if the lengths of the boards do not. They are only cut differently. Please help us out.Just a thought.

Mathematics is the only subject where you could get away with saying "You'd get optimum area by bending the two planks into a circle."

Thanks, guys. Karen, I haven't built it yet, so it was a question that I just pondered in my wee little brain. That does make sense though that the widths of the boards at the adjoining edges would eat up some of the space. However, even on paper with a pencil thin line it does this space time morphing thing.Still perplexed.Just a thought.PS Good to be back

I didn't say it would fit in a 20 million by 20 million plot, I was saying that it would be very inefficient in terms of area, whereas a square that is 20 by 20 would obviously have plenty of area.

How does the surface area change if the lengths of the boards do not. They are only cut differently. Please help us out.Just a thought.