SOLUTION: How many rectangles of different lengths can you make from 28 toothpicks?

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Question 1113880: How many rectangles of different lengths can you make from 28 toothpicks?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
The sides should be

13 1
12 2
11 3
10 4


and so on. Based on my hint, you can complete the solution on your own.